And spyware/malware is probably the single biggest reason you shouldn't be using Internet Explorer, or anything based on Internet Explorer.
Start running some scans, see if you can get rid of whatever you've picked up, then ditch IE for your choice of Mozilla Firefox or Opera.
In trying to search CNet reviews for a scanner I get my requested page for about 2 seconds then rediredted to MSN web search for
view.atdmt.com/MRT/iview/cntnswxp0050000569mrt/direct/01/2007.05.23.20.38.30?click=http:%2F%2Fadlog%2Ecom%2Ecom%2Fadlog%2Fe%2Fr%.
This does'nt look at all familiar. Could this be a highjack attempt or just another system prob? Has this system finally pushed me over the edge. LOL.

Chowhound
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GameFAQs
GameSpot
Giant Bomb
TechRepublic