I have the same issue on my AE system. I tried trashing the prefs but it didn’t fix the error. Next I tried a reinstall of AE CS3 but that failed because it kept asking for “disk 2 ExtendScript Toolkit 2.” I tried downloading and installing the latest ExtendScript Toolkit 2 from Adobe, but afterward the AE reinstall still prompted for disk 2 and would not proceed.
I really don’t know if I should do a manual uninstall of After Effects for two reasons. I’m afraid of damaging shared components with CS3 Design Suite apps and I’m afraid that I still might run into the same “disk 2” scenario when I go back to install After Effects.
Has anyone else had this or found a remedy?