Have you submitted your HIJACKTHIS log to a HIJACKTHIS support forum?
Notice what's not in your post?
This one keeps getting deleted (for whatever the reason) - bought my laptop a few months back, and a TON of 'sites say "Not Responding" and freeze up; happens most on ESPN.com.
Any tips? Yes, I use Norton's, Spybot, and AdWare, and they never find anything.