I installed the latest drivers for my Gateway T-1625 notebook. It runs perfectly except when I shut the lid and go into sleep mode. When I open the lid the screen comes back on and there are white lines running horizontally on it. Once I go to the desktop the white lines do not go away. The only way to get rid of them is to restart. Sometimes a screeching sound comes through my speakers when coming out of sleep mode as well. I had the same problem with Windows Vista 64-bit as well. This only seems to happen with 64-bit, not with 32-bit.
Same as the problem this person is having. Looks just like that for me.
If anyone has any ideas or suggestions, help would be welcome.