Hi all, been a hell of a long time since I posted here but I came because this is the best place I can think of for help with my problem..
It's is hard to explain but I am useing dual (identical) monitors on a HD 6870..
At Random in games all of a sudden the screen positioning shifts.. With a vertical line.. see Image to see what I'm talking about..

The only way to fix it is a reboot till it happens again
Has anyone got any Ideas?
This has happened once randomly on the desktop too last night.
Thanks
Pappy55