My old office just contacted me with a problem that I haven't been able to resolve. They are running a network installation of v4.73 and, for one of the users, Pegasus Mail hangs each time one of the users attempts to open a message. No reader window is visible but I doubt it is an off-screen issue considering that no is clickable within Pegasus Mail except that it can be minimized. I had them move out all .cnm files arrived since it last worked but that didn't solve the problem. Oddly, the mailbox lock was only left in place after one of the three kills that they did while I was on the phone. Any thoughts would be appreciated.

I found the problem! STATE.PMJ was corrupted.

You're the hero, as always, Brian! My next idea would have been a MiniDump snapshot, but that might have failed to diagnose in such a case and isn't easily done on network installs anyway ...