restartin pc with no reason

i got a problem i recently intalled avast on my pc but i got a problem using a p2p
program (shareaza) cause when i start using it, my pc restart with no reason
thx

im using XP im using avast 4.6739, other security porgs, its only the spy bot search and destroy, mmm reinstalling shareaza, i already did it and it didnt help

Could you give us a little more info on your system like what OS, updates, other security programs etc.

Did you try reinstalling Shareaza?

I’m afraid you still gave us too little info. Do you have SP2?What firewall?Do you have the latest Shareaza installed?This is a long shot but can you try to change the port in Shareaza?

EDIT: Could you run a couple scans with avast and the rest of scanners you have.Also try THIS online scanner…

Shareaza shouldn’t turn off the computer.
Maybe you’re infected… most probably.
Do what ReVaN said and post again the situation of your system (and its configuration: programs, etc.).
Welcome to avast forums.