True Vector Error?

[adams]

i was looking in the event viewer (in xp pro) under the applications and see a ton of true vector errors. what are these and what do i need to do so they don't happen, if anything?

xp pro
athlon 2500
256MB ram ddr(will have 512MB tuesday)
ez firewall (looks and acts just like ZA, in fact it update from zonealarm.) and ez antivirus.
geforce2 ti 64mb ddr

if you need any more info just ask. also look at the pic attached.

edit: the reason why i was looking in there was because my computer has randomly been shutting down.