Lots of frezeeing, blue screen errors etc,

[Ibit]

ive had the p.C for one year and it has gone fine. but iv'e just got it on the net and Im haveing trouble runniging games, music software is cracking and a while ago (two week i lost all the info on D: drive 20 gig pationed 14 gig in d:), staeing the lab settings in bios needed fixing, but they were set.
also ive been havwing trouble (alot) getting americas army working.
inhave the latest drivers for everything but my sound card.
here are my stats
p4 1.5, 256 mb ddr 9i think, [______}{______}[_____________]
it has two slots like the diagram
geforce 2 200mx
win ME
20 gig ata barracuda h/d
cr8 live100 sondcard
pc 133 f/b (i think thats whhat it means, might be the ram though?
gumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbiegumbie
Thanks to who ever bothered to read my poetry

[TazUk]

A clean install and the latest drivers would cure it but that's a bit of a drastic measure