Is really easy.
1. Download the new video drivers from this location:
Extract it's contents to an Video folder, using WinRar or my preferate software, PowerArchiver (right-click on R106326.EXE > Extract to ...)
2. Start > right-click on My Computer > Properties
3. Click on tab Hardware > Device Manager
4. Under Display Adapters, right-click on NVIDIA GeForce Go 6800 Ultra > Uninstall
Click on YES always,...