This is your video. This is not a standalone card. This is a chipset on the motherboard. Read what this says below. You need better video card. Unless you can find a way to mazimize that card. Where did you purchase your AFP?

Here is a link to more info on your computer the HP a420n aka DQ175:
http://www.exactchoice.com/profile_1792.aspx


Integrated Intel Extreme 3D Graphics

Despite the name, the 3D graphics here are relatively weak. That said, it's a perfectly good, low-cost solution for everyday computing. You'll only notice the shortcomings if you're into 3D gaming or other forms of 3D-graphics software. "Integrated" means that it is actually not a card but rather has the hardware integrated with the computer's main board. This situation can be good in that it saves an expansion slot for something else. However, if the integrated graphics circuity fails, you may be looking at replacing the motherboard rather than a single card.

"You'll only notice the shortcomings if you're into 3D gaming or other forms of 3D-graphics software".