I too have had nothing but issues with version 11.

Despite having a reasonably powerful machine, I cannot get my four monitor configuration _configured_.

--The monitor abstractions are so badly lagged that I can't get them to align properly.

--The monitor configuration starts (from left to right): 1, 2, 3, 4. When I clone my primary monitor to my built-in laptop monitor (3/1), 4 moves to the far left, 2 moves to the far right

--The correct monitor order should be (from left to right): 2, 3/1, 4. Every time I apply the configuration, it reverts back to 1, 2, 3, 4.

Thankfully, I saved version 10, which I have used for a while, has been stable, and robust--even running graphic intensive tools like Adobe PS.

I am going to revert as follows:

--use revoUPPort to fully uninstall 11.02 (system restore point, full registry backup)
--use CCleaner to remove any residule registry liter (full registry backup)
--reboot

--reinstall version 10.1.2