i cant play Need For Speed Underground either...

my pc specs are:

Windows XP Home Edition
AMD Duron 1GHz
384MB SDRAM
C:, Total: 10.3GB, Free: 6.5GB
D:, Total: 46.8GB, Free: 24GB
Connection: Blueyonder Cable Internet 512kbit
GFX: SiS 630/730 64MB (On Board Video Card using 64mb from the 384mb sdram)

i am having problems playing it...

the startup movie plays but its a bit laggy.
as soon as im past that movie the user menu cannot be seen... the music menu in the bottom left corner is all blurred and the options on the right are all blocky and cannot be read.

I know games play because i have played Vice City.. and I think that game uses more power. I have no Setups on my CD for acceleration so if anyone has anything for me please help out :/