At Last, some one suffering from the same problem and with a work around, That works!
Today I have downloaded half a dozen different AV and malware detectors (Avast, GMER, MBR, Spybot, Stubware) and nothing has indicated where the problem is. I was begining to think I was imagining it.
I been searching under "Newserversearch" because if you type this into Google on IE or Firefox then the search display gets corrupted into these variants. Its a tough one because it fights back, stopping Spybot from running unless you run it in Safe mode . but Spybot still doesn't find anything.
At least I can use my renamed Firefox now .