Norm,
Looks like your getting good advice, but I guess I'll put in my 25 cents worth.
The problem is not w/ Freeverb, specifically.
I had the same problem with it and several other plug-ins, same error message, etc. I think Direct-X is not looking in the right place, or has a glitch. (my problems started when I moved some files)
I reloaded freeverb and it works just fine on my Walmart Pavillion running 9.03, although any files I saved with the screwed up effects are locked up.
You don't want to go down that road.............
SO A WORD TO THE WISE.....
if you are having these kind of plug-in problems,
SAVE a copy of your project WITHOUT any REAL TIME effects, delete them by console or track view, or apply
them destructivly. Just in case. I sure wish I had.
Good luck, scooter