some interesting ideas but they don't quite fit the situation. First I didn't exactly upgrade, just switched to sharing from my desktop (cube) to my laptop (titanium). Both are running the same OS (10.2.4) so there shouldn't be any driver issues with the external hard drive. PLUS I've since tried downloading/sharing with Acquisition .84 and haven't had the missing file problem

This makes me wonder if it's a problem with a corrupted copy of Limewire (copied over from the desktop) hmmmmm