Are you one of the lucky ones playing the Starcraft II beta, and do you have an Nvidia graphics card? If you ticked the 'Yez, 4 sure' box for both questions then you may be interested in the new GeForce 197.25 beta driver released today. Boasting support for GeForce 6, 7, 8, 9, 100, 200, and 300 series desktop cards and ION GPUs, the driver resolves several issues with DirectX 8 applications not launching correctly, and fixes Starcraft II beta crashes and flickering.
The GeForce 197.25 beta is available for the 32bit and 64bit version of Windows 7 and Windows Vista.
32 bits :
P.D: En lo personal , uso Forceware 196.21 para W7 64 y no he experimentado crashes ni flickering en la beta de Starcraft 2.