Sorry to hear you are having trouble.
Literally the only time it happens is when another user logs into the computer, and I know how to restore a snapshot, but I shouldn't have to every time my wife or kids log into their user name.
And when this happens, no doubt the resolution(s) on the PC change (games will do this most often).
You can also try this:
Make sure to resave a snapshot after as well.
Stardock Support Manager