CS5 Bridge stutters

I upgraded from CS4 to CS5 with no

issues. I can open both the 32 and 64 bit version of PS with no issues.

But when I open CS5 Bridge, the PC slows and my mouse stutters. My processor meter jumps up to 50% and then down to zero...like its stuck...and will continue to do this until I close bridge...and then all is fine.

I have 8GB of memory and have tried all forms of settings in the PS memory allocation, cache sites, etc...nothing changes.

I have tried resetting bridge using the CNTRL command on opening. I have tries manual removing cache loacstions, etc.

All with no change.

I even tried removing and reloading CS5...no change.

Anyone have any ideas?

I have a case open but the PFD response "every two days try this" is getting really frustrating!!!!