2000 or XP? which is better for compatibility?

i have been getting alot of blank screens after bootup with xp.This occurs about 5 times then it boots.this only happens after i install the graphics card and mobo drivers-i think it is the graphics card cause if i put it in VGA mode it boots fine!so iam thinking of using 2000 pro so it wont have these driver issues.I have tried update the drivers but still no luck.so are their any main differences between the 2? i know you cant emulate certain os's but that doesn't bother me. Please state the differences between the two os's.
cheers

XP can use 2000 drivers for various devices, but stuff like video cards and chipsets is a different story.

I suspect you are doing something wrong, or the wrong way around.

Try doing things differently - maybe even try a couple of steps back from the latest drivers; sadly some introduce problems rather than fix them.