What gurusan said.
Given that the current card is a MX 440, I'm going to assume the system is a bit old. It's probably time to consider upgrading. If that's not an option, I still wouldn't put a lot of money into that system. I'd really consider it on "life support."
If your friend has around $100 to spend then look into a card based on either the Nvidia 7600GS GPU or the ATI 1650 Pro GPU. Something like this EVGA 7600 GS
or this HIS Radeon X1650PRO
. I wouldn't spend more than that for that system (unless it's a lot better than I am guessing).
If that's too high, maybe something with an Nvidia 5200 or 5500 GPU or an ATI-based card with 9550 or 9600 Pro GPU would be better. They are around $50.
Again, just make sure any card you consider is AGP 8X compatible.