[hyawatha15]

I installed Delta Force Xtreme on my laptop
P4 2.4 GHz
Windows XP
1GB RAM
64 MB ATI Radeon Mobility 9000 (Latest Catalyst Driver)

And for some reasone it runs like crap, really choppy on almost all levels when i can run doom 3 on medium graphics and it runs nice and smooth. And whene i installed DFX it set the recommended video settings and they work like ****
So then I installed it on my family Desktop compuer
P4 1.7 GHz
Windows XP
512 MB RAM
32 MB NVidia GForce 2 (Out of the Box Graphics Driver)

And on this computer, it runs fine on minumum specs smoothly and on my laptop, it runs choppy even on minumum specs. What could possibly be wrong with it?