Hi Kirk,
I'm using PM V5.0 build 15451, on a Windows 7/64 (but I think, it happened also on the last versions before)
The crash happens after round about 1 min after starting PM. If I close PM BEFORE the crash and restart it, the crash usually will not happen again. If I don't close it and the crash happens, the crash will happen 1 min after a restart again (until I close PM in a normal way before the 1 min is over and the crash happens again). It doesn't matter, what I do during this first minute (working, copying, opening folders, doing nothing), it's always the same. Sometimes (not always, I think) it's helpful, to delete the cache folder in Windows Explorer or empty the cache manually in the preferences of PM.
Cheers,
Armin