JudasIscariot: I have a weird issue with Crusader Kings II and accidentally going into ALT-TAB mode when I point the mouse pointer to the upper left corner of the screen.
shmerl: Check out
System Settings > Workspace Behavior > Screen Edges. There you can disable any actions in the corners, or assign some other ones.
JudasIscariot: I end up having my resolution get reset to 1024 x 768 an sometimes even getting into System Settings doesn't help as my display goes haywire
shmerl: To reset resolution quickly, try for example:
Alt+F2 and in the kickoff:
xrandr -s 0 (or do that in the terminal). 0 is normally the default resolution. To see them all just run xrandr in the terminal. They should be indexed as 0, 1, 2, 3, ...etc.
I just went ahead and disabled all of the desktop effects and it helped :D No more accidental mouse alt-tabbing for me :D Thanks for the tip, though :)