Sound or Video card related problem?

[7Words]

it's been awhile since i posted in Technical Support. here goes:
a few days ago i put in a brand new diamond mx300 soundcard and ever since i installed, (with no problems installing) enything i do related to gaming or playing movies freezes my system. so i decided to do some testing. i uninstalled everything related to my soundcard and played serious sam, half life, and watched some movies and everything was fine but mind you, without sound. so than i installed the soundcard again and i the usual low resource tasks work, like using winamp and browsing the web but when i try to play counterstrike or serious sam, the game would freeze on me (same goes with watching a movie file).

specs:

amd t-bird 800mhz not OC
via k7v mobo
tnt 32 pro
diamond mx300
256mb pc133 infineon ram
54x cdrom
30g ibm deskstar (not sure about the rpm)

thanks in advance.

[This message has been edited by 7Words (edited 04-16-2001).]

[7Words]

more specs:

start up programs include
rain
rambooster
zone alarm
black ice defender
norton antivirus 2k
mbprobe (avg temp inside case 33C, processor 27C)

also like to add that i recently replaced my old 2 speaker system with altec lansing acs54 system. so i disabled my onboard sound and installed the mx300 soundcard.

[LordLocksley]

Could be a rescource conflict or bad card. Have you tried another sound card or a different slot. My K7V doesn't like the NIC in slot 2.