Hello and welcome,
Sorry for all the questions, but........
In order to troubleshoot your problem we need to know more detailed specs of your system hardware.
1. Go to Start > Run, and type msinfo32, look under the
Components section for hardware identification
2. Go to Control Panel > Device Manager and look for any entry that has a
yellow flag beside it
3. The
manufacturer name and model number of your PC, if applicable
4 Please fill out your computers specs in the User Control Panel here on the site as well. It will then appear next to your name. look at my posting and you'll see the drop-down arrow.
The exact make and model of your motherboard would be of great help also.
Are you using the 32-bit or 64-bit version?
Was it a "clean" install or an upgrade?
Are you dual-booting?
Are you suing the official RC directly from Microsoft?
Did this occur immediately after install?
Do you recall installing any software that may have caused the problem?
Do you have the Windows 7 drivers directly from Nvidia?
GeForce/ION Driver Release 186 WHQL
This is the 32-bit driver.
If you need the 64-bit edition use this link:
GeForce/ION Driver Release 186
Go to Start > Search, type in Fix problems, select Fix problems with transparency and visual effects. this will bring up the Aero troubleshooter and test your graphic card.