I got this warning today:
I have InDesign CS3 on a 2007 MacBook Pro with 10.6.8 (this is at home, so I don't use ID very much). I tried trashing the prefs and restarting, but it stalls on this warning, and pushing either button does nothing. I looked in my Plug-Ins folder, but didn't see either of the listed Plugins.
There haven't been any OS updates since the last time I used the program, which was a week or so ago, so I know the program works with my OS. Any ideas?