Thanks for you efforts, Jon, much appreciated!

Major issue on Windows 7. When program windows are moved from the secondary monitor to the primary monitor, they disappear off the secondary taskbar, but do not reappear on the Windows taskbar.

This happens on every program I've tried, with all combinations of program counts, and repros consistently.

This problem does not occur on the May 25 build.

Happens no matter how the windows are moved. Windows shortcut (Winkey+Shift+Left), Displayfusion shortcut (Ctrl+Win+X), drag to new monitor.

Windows 7 x64 RC1, running dual monitors in portrait-mode (but repros in dual-landscape mode too).

I can confirm. It happens when I move an app from either the secondary or tertiary monitor to the primary. The task disappears from the DF taskbar, but nevers appears back on the main taskbar. This is on XP SP3.

Second, Excel still does not consistently appear on the correct taskbar. If I have multiple spreadsheets open on a secondary monitor, after minimizing and restoring a few times, at least one of the spreadsheets appears magically on the main taskbar as well.

I hate to poop on your parade, but the DF taskbar is still getting stuck behind apps. If I un-hide the main taskbar and then re-start DF, it works for a while. I don't know exactly whats make it stop working though...

Confirmed bug where moving a window from DF taskbar back to Windows taskbar causes taskbar entry to disappear. Running Windows 7 RC with May 27 beta with Windows classic taskbar. May 24 beta doesn't exhibit the problem.

--- Machine ------------
Operating System: Microsoft Windows NT 5.1.2600 Service Pack 3
Operating System Version: 5.1.2600.196608
Detected Version: WindowsXP / 2003
CPU: x86
Date/Time (UTC): 05/28/2009 20:56:24
Date/Time (Local): 05/28/2009 13:56:24
.NET Framework: 2.0.50727.3082
CurrentCulture: English (United States) (en-US ~ en)
CurrentUICulture: English (United States) (en-US ~ en)

--- Wallpaper ------------
Wallpaper Span: False
Monitor #1 Image: C:\Documents and Settings\scotta.SOUNDMEDIMAGING\My Documents\My Pictures\Wallpaper\Connection.jpg
Monitor #2 Image: C:\Documents and Settings\scotta.SOUNDMEDIMAGING\My Documents\My Pictures\Wallpaper\cosmogony1280.jpg
Monitor #3 Image: C:\Documents and Settings\scotta.SOUNDMEDIMAGING\My Documents\My Pictures\Wallpaper\dispersion1920.jpg

--- DisplayFusion ------------
Name: DisplayFusion Pro v3.0.4 (Beta)
Build Date: May 27, 2009 21:25
Pro: True
Pro License: 101-QVKN-57C6-GYZK (truncated)
Command Line: "C:\Program Files\DisplayFusion\DisplayFusion.exe"
Current Folder: C:\Program Files\DisplayFusion
Performance Mode: False
Prevent System Hooks: False

--- DisplayFusion x86 Hook DLL ------------
Path: C:\Program Files\DisplayFusion\DisplayFusionHookx86.dll
Name: DisplayFusion Hook
Prod Version: 1, 4, 1, 0
File Version: 1, 4, 1, 0
Size: 47,792 bytes

--- DisplayFusion x64 Hook DLL ------------
Path: C:\Program Files\DisplayFusion\DisplayFusionHookx64.dll
Name: DisplayFusion Hook
Prod Version: 1, 4, 1, 0
File Version: 1, 4, 1, 0
Size: 60,592 bytes

--- Monitor 1------------
Name: \\.\DISPLAY1
Primary: True
Bounds: {X=0,Y=0,Width=1280,Height=1024}
WorkArea: {X=0,Y=0,Width=1280,Height=964}

--- Monitor 2------------
Name: \\.\DISPLAY2
Primary: False
Bounds: {X=2192,Y=-1024,Width=1280,Height=1024}
WorkArea: {X=2192,Y=-1024,Width=1280,Height=1022}

--- Monitor 3------------
Name: \\.\DISPLAY3
Primary: False
Bounds: {X=1280,Y=0,Width=1440,Height=900}
WorkArea: {X=1280,Y=0,Width=1440,Height=898}

--- Screens ------------
Count: 3
Point Min X: 0
Point Min Y: -1024
Point Max X: 3472
Point Max Y: 1024
Total Width: 3472
Total Height: 2048
ActiveDesktop: False

--- Screen 1------------
ScreenID: 0
Device: \\.\DISPLAY1
Location: 0 x 0
Size: 1280 x 1024
MoveH: 0
MoveV: 0

--- Screen 2------------
ScreenID: 1
Device: \\.\DISPLAY2
Location: 2192 x -1024
Size: 1280 x 1024
MoveH: 0
MoveV: 0

--- Screen 3------------
ScreenID: 2
Device: \\.\DISPLAY3
Location: 1280 x 0
Size: 1440 x 900
MoveH: 0
MoveV: 0

--- Managed Threads ------------
Count: 4
ID:3 ~ Name:TaskbarManager ~ Age:01:12:11.2656250 ~ Alive:True ~ BG:True ~ State:Background ~ Thread Name:TaskbarManager_4d71abb6-b7da-4e16-819b-990c5620de69
ID:4 ~ Name:HookManager ~ Age:01:12:11.2656250 ~ Alive:True ~ BG:True ~ State:Background ~ Thread Name:HookManager_4573c687-6e62-46e8-af16-b1d040fb1231
ID:227 ~ Name:TaskbarEnum ~ Age:00:00:01.0781250 ~ Alive:False ~ BG ~ State:Stopped ~ Thread Name:TaskbarEnum_dd719481-9230-40aa-8994-16527d9d2543
ID:226 ~ Name:Hook:WM_LBUTTONDOWN ~ Age:00:00:00.7343750 ~ Alive:False ~ BG ~ State:Stopped ~ Thread Name:Hook:WM_LBUTTONDOWN_11e9fe0b-575b-4ce4-9c84-c086e66a8a6f

--- Taskbars ------------
Enabled: True
Auto-hide: True
Visual Styles: True
Visual Styles Detected: True
DWM Composition Detected: False
Opacity: 100
Window Options: ShowRelevant
Button Width Max: 160px
Count: 2

--- Taskbar 1------------
Location: {X=2192,Y=-2,Width=1280,Height=2}
TopMost: False
Buttons (0):
None

--- Taskbar 2------------
Location: {X=1280,Y=898,Width=1440,Height=2}
TopMost: True
Buttons (2):
"DisplayFusion 3.0.5 Beta (May 27, 2009) - Mozilla Firefox" (00321080:00321080)
"smipacs01 - Remote Desktop" (00151588:0015158

--- Windows Taskbar Buttons (4)------------
"DisplayFusion 3.0.5 Beta (May 27, 2009) - Mozilla Firefox" (00321080:00321080:00321080 ~ None ~ GCL_HIconSM ~ 1276x-4)
"Inbox - Microsoft Outlook non-commercial use" (00070fe8:00070fe8:00070fe8 ~ None ~ GCL_HIconSM ~ -4x-4)
"RISLinQ" (00200fc2:00200fc2:00200fc2 ~ None ~ Icon_Small2 ~ -4x-4)
"smipacs01 - Remote Desktop" (00151588:00151588:00151588 ~ None ~ GCL_HIconSM ~ 1276x-4)

I don't know if the new taskbar bug is a result from a fix for this, but I can confirm the dragging issue. "This" sould be some odd behavior, that I was never able to repro effectively, that made some widows on the DF taskbar dupe onto the windows one.

Here's another dump. I had my main taskbar set to not auto-hide the whole time...

--- Machine ------------
Operating System: Microsoft Windows NT 5.1.2600 Service Pack 3
Operating System Version: 5.1.2600.196608
Detected Version: WindowsXP / 2003
CPU: x86
Date/Time (UTC): 05/28/2009 21:52:42
Date/Time (Local): 05/28/2009 14:52:42
.NET Framework: 2.0.50727.3082
CurrentCulture: English (United States) (en-US ~ en)
CurrentUICulture: English (United States) (en-US ~ en)

--- Wallpaper ------------
Wallpaper Span: False
Monitor #1 Image: C:\Documents and Settings\scotta.SOUNDMEDIMAGING\My Documents\My Pictures\Wallpaper\Connection.jpg
Monitor #2 Image: C:\Documents and Settings\scotta.SOUNDMEDIMAGING\My Documents\My Pictures\Wallpaper\cosmogony1280.jpg
Monitor #3 Image: C:\Documents and Settings\scotta.SOUNDMEDIMAGING\My Documents\My Pictures\Wallpaper\dispersion1920.jpg

--- DisplayFusion ------------
Name: DisplayFusion Pro v3.0.4 (Beta)
Build Date: May 27, 2009 21:25
Pro: True
Pro License: 101-QVKN-57C6-GYZK (truncated)
Command Line: "C:\Program Files\DisplayFusion\DisplayFusion.exe"
Current Folder: C:\Program Files\DisplayFusion
Performance Mode: False
Prevent System Hooks: False

--- DisplayFusion x86 Hook DLL ------------
Path: C:\Program Files\DisplayFusion\DisplayFusionHookx86.dll
Name: DisplayFusion Hook
Prod Version: 1, 4, 1, 0
File Version: 1, 4, 1, 0
Size: 47,792 bytes

--- DisplayFusion x64 Hook DLL ------------
Path: C:\Program Files\DisplayFusion\DisplayFusionHookx64.dll
Name: DisplayFusion Hook
Prod Version: 1, 4, 1, 0
File Version: 1, 4, 1, 0
Size: 60,592 bytes

--- Monitor 1------------
Name: \\.\DISPLAY1
Primary: True
Bounds: {X=0,Y=0,Width=1280,Height=1024}
WorkArea: {X=0,Y=0,Width=1280,Height=964}

--- Monitor 2------------
Name: \\.\DISPLAY2
Primary: False
Bounds: {X=2192,Y=-1024,Width=1280,Height=1024}
WorkArea: {X=2192,Y=-1024,Width=1280,Height=1022}

--- Monitor 3------------
Name: \\.\DISPLAY3
Primary: False
Bounds: {X=1280,Y=0,Width=1440,Height=900}
WorkArea: {X=1280,Y=0,Width=1440,Height=898}

--- Screens ------------
Count: 3
Point Min X: 0
Point Min Y: -1024
Point Max X: 3472
Point Max Y: 1024
Total Width: 3472
Total Height: 2048
ActiveDesktop: False

--- Screen 1------------
ScreenID: 0
Device: \\.\DISPLAY1
Location: 0 x 0
Size: 1280 x 1024
MoveH: 0
MoveV: 0

--- Screen 2------------
ScreenID: 1
Device: \\.\DISPLAY2
Location: 2192 x -1024
Size: 1280 x 1024
MoveH: 0
MoveV: 0

--- Screen 3------------
ScreenID: 2
Device: \\.\DISPLAY3
Location: 1280 x 0
Size: 1440 x 900
MoveH: 0
MoveV: 0

--- Managed Threads ------------
Count: 4
ID:3 ~ Name:TaskbarManager ~ Age:02:08:29.9843750 ~ Alive:True ~ BG:True ~ State:Background ~ Thread Name:TaskbarManager_4d71abb6-b7da-4e16-819b-990c5620de69
ID:4 ~ Name:HookManager ~ Age:02:08:29.9843750 ~ Alive:True ~ BG:True ~ State:Background ~ Thread Name:HookManager_4573c687-6e62-46e8-af16-b1d040fb1231
ID:50 ~ Name:TaskbarEnum ~ Age:00:00:01.0312500 ~ Alive:False ~ BG ~ State:Stopped ~ Thread Name:TaskbarEnum_5d58d722-3a8a-47bf-9db9-ae849e00a003
ID:51 ~ Name:Hook:WM_LBUTTONDOWN ~ Age:00:00:00.2812500 ~ Alive:False ~ BG ~ State:Stopped ~ Thread Name:Hook:WM_LBUTTONDOWN_00bd227d-be53-4747-a519-dba518c50117

--- Taskbars ------------
Enabled: True
Auto-hide: True
Visual Styles: True
Visual Styles Detected: True
DWM Composition Detected: False
Opacity: 100
Window Options: ShowRelevant
Button Width Max: 160px
Count: 2

--- Taskbar 1------------
Location: {X=2192,Y=-2,Width=1280,Height=2}
TopMost: False
Buttons (0):
None

--- Taskbar 2------------
Location: {X=1280,Y=898,Width=1440,Height=2}
TopMost: True
Buttons (2):
"TVersity - Download - Mozilla Firefox" (00321080:00321080)
"smipacs01 - Remote Desktop" (00781344:00781344)

--- Windows Taskbar Buttons (5)------------
"TVersity - Download - Mozilla Firefox" (00321080:00321080:00321080 ~ None ~ GCL_HIconSM ~ 1276x-4)
"CI Read - Microsoft Outlook non-commercial use" (00070fe8:00070fe8:00070fe8 ~ None ~ GCL_HIconSM ~ -4x-4)
"RISLinQ" (00200fc2:00200fc2:00200fc2 ~ None ~ Icon_Small2 ~ -4x-4)
"K-PACS" (006d1134:006d1134:001c1bd4 ~ DelphiUnknown ~ Icon_Small2 ~ 361x194)
"smipacs01 - Remote Desktop" (00781344:00781344:00781344 ~ None ~ GCL_HIconSM ~ 1276x-4)