Working on a CS3 PPro project, no problems. Startup up this morning to find all AE clips now read as 'Media Offline' & when I try to open AE it crashes with the following warning: - After Effects: Error Parsing Properties List. So I tried a few fix it that I could find. These being in PPro to slecet the entire timeline and move it slightly then Ctrl Z, some indicated fixed the problem, it didn't for me. So then I followed Todd K's advice (http://blogs.adobe.com/toddkopriva/2009/02/crash_on_start_with_error_pars.html) but this doesn't work either. I tried to reinstall AE but I still get a crash, how do I fix this?
Reinstall everything, but only after using the CS3 Clean Script to erase all traces of previous installs. Sounds like your MediaCore stuff is messed up and unfortunately this will have to be repaired by including all programs that use it, i.e. AE, Premiere, Encore...
What an unpleasant experience that was. Took you're advise but still had error so Kumal at Tech Support was able to push me over the edge and thangs aren't crashing no more. I had to :-
Add/Remove Programs - remove CS3
run cs3 cleanscript choosing 'secret option' # 4, there are only two options 1 & 2 shown onscreen. Then reinstall, problem fixed. Thank you, thank you, thank you