That sounds like a good idea could you show me exactly what you did to install ubuntu. like how do you get it to boot off a usb stick?
http://unetbootin.sourceforge.net/
Edit: As to how to find out your graphics card: Just run dxdiag on Windows, and it'll say on the display tab.
Edit2: Also, telling us your CPU would be helpful. As I recall your laptop has only a 30 GiB hard drive, which means it's probably very old. I've had trouble running modern *buntus on really old laptops before because they don't have enough power.