My desktop screen keep flashing
My desktop screen keep flashing with intervals of 3 seconds... Also finder windows keep closing when i open it and it keep jumping at the bar. It ask me every third second about if i won't to re open the closed windows or not.
I tried to log in into another account and it stopped flashing? But it won't stop flashing on my primary account?
What can i do?
MacBook Pro, Mac OS X (10.7.1)