Hmmm. I can't find any info on that error message, and haven't really used OS 10.1.4. I thought Macs had only been shipped with 10.2.* for almost a year now. Odd.
Anyway, there was quite a discussion over problems with 10.1.5 that may be similar--have you run System Preferences->Software Update recently?
btw, which version of LW are you using?
I'll see if I can find that discussion about 10.1.5.
Here's one; there are one or two more.
http://www.gnutellaforums.com/showth...5&pagenumber=3