UT Crashing

[el nica]

I have 4 system, and they all crash after playing UT, maybe every other day..
my systems
p4 1.7tyan board
Gforce 3 ti 200
256 crucial ram
xp 1700+ shuttle ak31 rev 3.1
Gforce 3 ti 200
256 crucial ram
amd 1.33
AN11 from FIC
256 crucial ram
GFORCE 3 ti 200
etc
all of the above systems have ANTEC 400 watt p/s

Im running xp and win2k
4in 1 driver w/appropiate system
latest v/c driver from NVIDIA website

I play unreal every day but I get the same crash with any of the above system every other day, they all have up to date drivers.

any advised would be greatly appreciated

[ToastGodSupreme]

something about turning off direct sound in unrealtournament.ini fixed it for me.

Didn't notice any sound or performance diff either.

just search through, you'll find it