Digital BW, The Print

Hi group!

I was wondering if any of you mac experts could tell me what is going on
with photoshop and/or my system?

All my plugins for photoshop disappeared yesterday. I had a couple dozen
third party sets, like all the KTP and Eyecandy, Xenofex, etc filters,
and all have disappeared from the filter menu. Not grayed out, just
gone.  

All the filter icons still all show up in the plug ins folder within the
photoshop folder.

I had been using system 9.2.2, and when I get info on the system now in
use, it says version 9.2.1. That means that the computer, all by itself
started using a different system. 

I do have 9.2.1 on three other hard drives, but I only had the 9.2.2 on
one that I'm now using, and was using when this happened.  Any ideas on
how to get all the plugins to show up again under the photoshop filter's
menu?  I'm using Photoshop 7.0.

Thanks,

Jerry