Thanks for such quick response! But I think I’ve found the solution:
At various times during the past 2.5 years I’ve had FCE 3.0 and 3.5.1 installed on both a PowerBook and a PowerMac simultaneously, and
used both successfully.
Once in a great while I would get the warning I’ve been struggling
with today, but eventually it would “go away” and all would be well.
For the past two hours I have mounted and unmounted the partitions
on my PowerMac, verified the partitions and repaired those requiring
such.
I’ve disconnected the LaCie drive that contained my video and project
files.
I’ve restarted 12 times.
No luck.
Then, I turned to my PowerBook and noticed that I had opened
FCE 3.5.1 earlier today on it and that it was still running.
I closed FCE on the PowerBook, restarted the PowerMac, opened
FCE on the PowerMac and it worked.
My only conclusion (or guess) is that, because the same
version of FCE with the same serial number was open and
running on both computers at the same time, this was detected
by Apple via the internet, since both were hooked up to
active internet connections at the same time, also.
Thus, Apple is capable and able to send out this warning when
it detects, via the internet, this type of situation exists.
Without the two, simultaneous internet connections on both
the notebook and desktop, how could the desktop version
“know” that the notebook version was running?
If anyone else has a better explanation, I’d love to hear it.
Thanks again, Miriam.