How to change graphics hardware acceleration setting in Vista

To change graphics hardware acceleration setting in VISTA, Please perform steps provided below:

Click Start, click Control Panel, click Appearance and Personalization, click Personalization, click Display Settings, and then click Advanced Settings. Click the Troubleshoot tab, and then click Change Settings.If you are prompted for an administrator password or for confirmation, type the password, or provide confirmation.

Move the Hardware Acceleration slider to the Right. If you reduce the Hardware Acceleration setting, you may experience more issues with video rendering.

Click OK three times, and then close the window.