I had some funky display show up when I went to finance.yahoo.com so I ran a antispyware check using http://www.superantispyware.com/index.html. Since this program takes a long time I ran the Microsoft Safety Scanner, too. Microsoft did not find anything and SUPERAntiSpyware found a false positive on a file included in QuickBooks SDK 10, tiny.exe.
Do you think your PC has a virus?
The Microsoft Safety Scanner is a free downloadable security tool that provides on-demand scanning and helps remove viruses, spyware, and other malicious software. It works with your existing antivirus software.