EXS 24 Logic Sampler Users Group

Hi All:
I just filled an external FW drive with samples, some
25 gigs worth, and am trying to get the EXS24 to see
them. I've got all the sampler instruments in the
correct folder on my system drive, but the EXS can't
seem to find the associated samples.

I tried switching the EXS preferences to "search
external volumes" (or whatever the exact wording is)
and "search all volumes", but that causes Logic to
crash. I also tried doing a Project Manager scan of
the appropriate folders on all drives, but that didn't
help. Oh, and I just installed Tiger a couple of days
ago. Any idea what might be going on?
Thanks ~ mb