If you see an 窶徙ut of memory窶 message, try turning on Temporary memory (in the Preferences dialog). If you still are running short on memory, try increasing Tex-Edit窶冱 memory allocation in the Finder. I would suggest at least 1200K if you plan on doing a lot of picture editing with a big color monitor.
If you notice any strange behavior while using Tex-Edit Plus, try deleting the 窶弋ex-Edit+ Prefs窶 file in the Preferences folder.
Some problems are caused by Extension conflicts. Try re-booting your computer with the shift key held down.
Some problems are caused by a corrupted 窶廛esktop窶 file. Try re-booting your computer with the option-command keys held down.
If you have trouble with the speech functions, try increasing Tex-Edit窶冱 memory allocation slightly. The 窶徂igh quality窶 MacinTalk Pro voices use the most memory. 窶廴arvin窶 and 窶廡red窶 use the least. Re-installing PlainTalk may help.
Persistent problems may require a 窶彡lean窶 System re-installation.