I have the same issue. McAfee, HijackThis, Malware, etc. will not run. I can get them to start but not finish; not even in safe mode. I did have success with Spyware Doctor. Spyware Doctor fines several trojans; Generic.Trojan, Trojan.ByteVerify, and others. It has removed all but the Generic.Trojan which continues to come back. McAfee will load and protect but will not actively scan. Scan will start the first time but quite after 20 seconds. If anyone has help on how to get rid of this please assist. This is only affecting the google search from either the add-on for Firefox or from the IGoogle search interface. I have no issue from google.com.