I bought a copy of Lightroom 2.0 last week and downloaded the 2.2 update. seemed to be running ok but last night when I had Bridge and CS3 open, everything went to the pack, and LR just froze... restarted puter and tried reopening.... same thing. So uninstalled, reinstalled and 2.0 opened ok, reinstalled update and the same thing, just froze on opening.
Is this a memory problem?... or incompatibility with CS3

I have 2 gig of ram and a 2 gig 64 bit processor, running XP SP2, 256 graphics card.
Did a defrag and that seems to have fixed bridge, although ti is a bit slow.
I would appreciate any thoughts on what the problem might be. Did a search and most of the issues I came across were more related to bulk export/imports... i don't even get that far.