Yep. Happened to me, too.
There's a suggestion for Macs in the Google help forum (Gaieus was there, too)
"To anyone else searching for this, go to user->library->preferences and delete all com.google files."
I'm using SU Pro 8.0.4811 + numerous rubies on Win 7 64 bit
A quick search for this string (com.google) gave no direct matches, but some with "com80-kh.google" - which look like some sort of licence or authorisation file so I'm reluctant to kill'em.
If its relevant, I'm using Firefox as browser, but there's a feral IE somewhere there too.