Now im not new to computers.... i know you have to install the codecs to play avi files.... but ive done that and still, windows media player, classic, and winamp all crash when they try to play them!

Whats going on?

They worked before i reformatted and now, they dont

Has anyone any ideas?

Its a Via M series 993mhz motherboard, on board VGA.
All drivers are installed.

EDIT: Somehow got it to work. Crisis Averted. Thanks anyway
( im not so dumb afterall )