A few programs giving you a clean bill of health, is no indication you don't have 
an infection and that your system is actually clean. You need to get expert help 
on a malware support forum as Steve suggested.

Either go through these preliminary cleaning steps, or register on one of the other 
forums listed below. They specialize in malware removal. 

GeekstoGo - Malware Cleaning 

MalWare Removal Forums

Post Only on one forum. Good luck. 
Tech Support Guy-Malware Removal forum

Tip: To help prevent future malware infections, Stop using IE as your main 
browser. Switch to a more secure, less malware prone browser as your main browser. 
IE is extremely vulnerable to malware infections. 

Firefox and Opera are recommended alternatives by security experts. Additionally, 
use a HOSTS file. See the link below for more info. 
 

Blocking Unwanted Parasites with a Hosts File

• Reply or follow-up to this message

• Search this forum
• Start a new thread on a different subject

• Report abuse of the forum