Welcomre to Windows Seven forums. Please fill in your sytem specs this will help now and in the future. You can do it here
Also if you need help here is a program to help you find your hardware Speccy - System Information - Free Download
Another thing to take notice of is at the bottom of every thread their are other threads with simular issues you can read through and possibly find a suggestion that will work for you.
Let us know if the above suggetion helps and please always post back with the resolution even if you have found it on your own.