Maybe you can find out if you need to update drivers on your own :} Right-click anywhere on your desktop and click Properties, then go to the very last "Setitings" tab and tell us what it says under Display.
Then right-click on My Computer and select Properties too, click the Hardware tab, and then click on the Device Manager button. In the new window that comes up, expand the "Display adapters" list and tell us what it says there. I can then quickly check if yours is the latest driver for your card, and we can try further steps.