You have scanned for spyware/viruses, right? If you have and your system is clean, you should remove the windows option for IE and download Firefox: http://www.mozilla.org/products/firefox/
You'll be alot happier with Mozilla!!!!!
You remove IE in the add/remove software in control panel and then uncheck IE in the remove windows components drop down in add/remove programs.
Noli Nothis Permittere Te Terere!!
EVGA 680i, Dual EVGA 8800GT'S (650/950), 4 gigs OCZ DDR2 1066, Intel Q9450 at 3.8 Ghz, Koolance Water Cooled, Dual Plextor16x DL DVD+/-RW. Dual WD 250gb 16mb Cache Sata 3.0. 3DMark06 score = 19,168.