I know you said you did in your thread, but are you sure that you updated to the latest NVIDIA drivers? I did research and that's all I could come up with. Make sure they are from the NVIDIA site:
NVIDIA Driver Downloads - Advanced Search
I'll dig deeper and see if I can find anything if that doesn't work.
---------- Post added at 06:23 PM ---------- Previous post was at 06:18 PM ----------
After updating your drivers, try this solution:
1. Open the NVIDIA Control Panel (right click on desktop -> nvidia control panel)
2. Click "Manage 3D Settings"
3. Select the tab "Global Settings"
4. Change the preferred graphics processor to "High-Performance NVIDIA Processor"
Tell me if it works!