EXS 24 Logic Sampler Users Group

I'm getting nervous now. 

When I reload songs, EXS24 is sometimes unable to link to the samples 
of an instrument. The instrument is there, but no sound. If I clear 
it by selecting "no instrument", and then reload it, it appears and 
plays fine, but if I save and reload the song, it will sometimes come 
up broken again. 

Could this have something to do with the project manager? The samples 
for these instruments show up in red. (I'm afraid because of my 
moving them from the finder) I use the "find unresolved files" 
command, and it seems to work, but the files are still in red, and 
then will, as before, intermittently fail to load. 

I have recently upgraded from 5 to 6, and also recently installed VSL 
Opus 1.(667 powerbook, OS 9, 120 gb firewire drive)

Would the Redmatica software help me with this problem? Could this be 
related to the maximum total amount of instruments problem?

Hope someone can offer some help, this could be a disastrous problem 
for me.

Thanks. Darcy