I would just like to give a congratz to the main formites that try to answer peoples questions on here, sometimes with little information to go on, so most of the time the first answer to a question would be to provide system specs etc.
To those wanting an answer to a tech question PLEASE provide your specs so the Guys on here can help you. You have to remember that computer system are as different or unique as there are people on this planet and as much as people on here want to help they just can't pull the right help ( For You ) out of the air.
It takes all of 30 seconds to run dxdiag and save it to your desktop, and then just attach that to your question, and the nice thing is you can save that report and use it as many times as you want, or..... take the 30 seconds and create a new report ( Incase things have changed on your system ) to give again on your next possible query.
Cheers, All Take Care