Screen blinking and bluescreen

[Deleted]

After the 4.2 patch came, i have had this problem in some places. When im in specific place, my screen freezes and starts blinking. Then i get message that says something like 'video card shut down and recovered'. I also have had bluescreen twice after the blinking.
Now i have this problem in 4 places:
- Deepholm (Therazane's Throne)
- Lost City of Tol'Vir (After the 1st boss)
- Zul'Gurub (After Bloodlord Mandokir)
- Twilight Highlands (When teleporting from Orgrimmar)

Im not very good at this kind of things, so if someone can explain clearly i would be very happy (: (And sry 'bout my english)

[BicycleMafioso]

Does your videocard driver reset? Have you tried sweeping your videodrivers clean, and reinstalling the latest?

[Deleted]

Graphics cards drivers are failing. Re install (or update), and if that doesn't work, try an older version.