And, what Operating System are you running? (e.g.: Linux [Ubuntu], Windows, Macintosh)
If you're running Windows, hit the Windows key on your keyboard, and go into "Run".
Then in Run, type "dxdiag". There will be a window for the next part.
There are a bunch of tabs near the top of the window. Click on "Display".
Next, look at the "Chipset", and post what it says there. It can be image or text.