I have 2 Windows 7 x64 computers, both connected to the same router/ISP, both running Firefox - however one shows the new Google with roll-over navigation on left yet the other still shows old Google with nav bar at top. I have cleared temp files and cookies, restarted, and still have different versions of Google on each pc.
There's no problem - Google works fine - but I'm really puzzled how this can happen. Screenshot of new Google below
must get out more . . .