p2p program usually means Kazaa which usually means spyware which usually means lots of problems and headaches

First go here http://reviews.cnet.com/5208-6132-0.html?forumID=32&threadID=1313&start=0
get (at the least) Spybot and AdAware

After you have removed the spyware from your computer, you should consider removing the p2p (unless it is absolutely necessary)..
I don't know for sure, but I think well over half of all posted problems at these forums relate to spyware and many Kazaa users have come here for help.

Kazaa is (as a PROPHET once called it) "...like street drugs..."