I have dual Geforce GTX 260, I updated the drivers to 197.13 and upon loading SC2 the screen flickers from the loading screen to a black screen ever second. all but one of the times, the game would load fine, I could go into options, change my resolution (from 1920x1200 to 1680x1050) and the flicker would stop. I could go back to original resolution, and it did not resume the flicker.

I reverted to driver 196.21 and the problem went away.

Hello Timecks

Aetyrno is correct. If you are on Windows 7 or vista you can use the beta drivers for StarCraft 2 that NVIDIA put out. If you are on XP you should stick with the 196.21 drivers.