sys crashes while watching videos

Which OS do you use? And is it when you're streaming videos in your browser, or is it when you watch any video?

its not while watching online videos..its when i watch the videos saved in the harddisk...Os:vista home premium..the videos are mostly of avi extns..

Uninstall and reinstall K-Lite Codec Pack. If you havent got it, get it.

What movies are you watching Your system can't seem to handle them.

system spec?

Try disabling Fddshow and Direct VOB to Sub Audio and Video plugins.

thanks rocky_om.....uninstalling ffdshow seemed to correct the problem..thanq very much..