First try using FIREFOX as a browser....that sounds like what I used to get on IE..since using FF have not had it since...
Firefox web browser | Faster, more secure, & customizable
you can keep IE but use FF as main browser..some things are only seen on IE....and on FF there is an option to view site on IE...

as well as built in Pop up blocker..as well as ability to have several tabs on same window....awesome for my PTS sites..
I have Deluxe Shield (The Shield Deluxe) for AV....
Spybot, Spyware Blaster, Lavasoft Adaware, and for backup AV
Protection against Malware like Trojans, Worms, Dialer, Spyware in one program! a-squared Anti-Malware (A2) and Mamutu - Malware scanner and remover software
a-squared2 the free version...
another good freebie is AVG Antivirus....
AVG Free Advisor - AVG Anti-Virus Free Edition
THIS:
Belarc Advisor - Free Personal PC Audit
is really cool..free dwl'd and it tells you everything you have on your puter and if things are working right....good to have if you ever need help with puter say if it freezes up and have to have it repaired..
THIS:
http://savemybutt.com/
is a somewhat local forum (Chicago..weds night heard on WGN Radio 720AM..website Wednesday nights...st 11:30 PM) folks can call in and ask ???, or join the forum and one of the folks there can assist you ....also FREE....they have been real lifesaver for me a few times!! Good Luck!!
Jan