i know how everyone here hates norton, but i've been using norton antivirus since ive decided its pretty much a must considering how many documents i pass around at school via email. i'm still hoping someone would be able to shed some light on my problem. every once in a while, for no reason my fan kicks up to high gear. i check activity monitor and it shows nav is hogging up to 80% of the cpu but its not doing anything...its not scanning or anything. it will stay this way seemingly forever. i was wondering if anyone knows a reason for this and a possible solution other than force quitting it. thanks in advance.