Have you tried scanning with AVG in "SAFE MODE
You also should download and scan with MS Malicious Software Removal Tool.
And if your running Win XP/2000, download and scan with AVG Anti-Spyware 7.5
in "SAFE MODE
(This is Ewdio 4.0 renamed. If you already have Ewido installed, please update to this version which has a special "clean driver" for removing persistent malware). Be sure to print out the AVG Anti-Spyware Install-Scan Instructions.
Then perform this online Virus scan
: Trend Micro Housecall
<- Use "Autoclean" and manually delete what it can't clean
.[Watch the Address bar in IE. You may receive alerts that "This site might require the following ActiveX control...Click here to install...". Click on that alert and then Click Install ActiveX component.]
Also download, install and update SpywareBlaster
which blocks spyware tracking cookies and restricts the actions of potentially dangerous sites in Internet Explorer by adding a list of sites and domains associated with known spyware, advertisers and marketers to the Restricted Sites Zone.
Post back if your still having problems afterwards.