Just downloaded this program to make a stretched image desktop wallpaper on my dual monitors (Windows 7), it worked fine up until recently when I have noticed that there is a very obvious blinking / flickering only on my second monitor. it looks like it's coming from the edges and drawing horizontal lines and vertical lines repeatedly. I'm not using a timed background changer, it's just a single stretched image across both desktops. I have checked my monitor and I am unsure as to weather the problem is related to this program, but if anyone has any tips or suggestions on how I can fix this that would be greatly appreciated. I have attached a few of my settings that I seem relevant in an attachment, let me know if anyone needs any more information.
Thanks

Edit: I should also note, that this mainly happens when I am doing an action with my computer such as watching a video or playing a game.

Just clicked exit on the program and the issue still remains,