Bridge seems to be overly sensitive to installations of other non-Adobe software. It has crashed four times. I recovered via a reinstall twice and once via a reinstall with tech support help involving lots of reruns of "cleansing" programs. Now it's gone again. For a long while Adobe Update wouldn't work on my machine but does seem to now. Doing all the backlog of CS4 updates hasn't fixed the problem. Any suggestions outside of going through the "cleansings" again? I'm running the Win XP Pro x64 bit OS.