Yes, that is a well documented problem for lots of users - and I'm sure that will not make you feel better.
I have been having problems with Bridge CS3 since it was released and the only thing that helped was updating the NVIDIA Graphics Driver. And it helped alot!
You might want to try this path. Adobe, with Bridge CS3, may be using the GPU more than other programs and maybe a little too soon.
No doubt, using the GPU more is the future in image processing.
Anyway, it is worth the try to upgrade your driver.