On Jan 19, 2008, at 6:21 PM, Steve Self wrote: >> Archive and install the OS. Takes just a while and almost always >> works. > I may give that a try, but I just read that Apple is due (in principle) to release 10.5.2 soon, which will presumably have bug fixes for Mail.app among other things. SInce that could be out within the next couple of weeks, I'm probably going to wait rather than try major surgery. In the meantime, I'll just not close Mail and let the system run, since as long as it's running it seems to be okay.