Yesterday Pmail 4.52 started giving me a "Pegasus Mail for Windows has encountered a problem and needs to close" error immediately on startup.
Interestingly when the "Start in" folder was the PMAIL folder it seemed to start normally, but when it was another folder it wouldn't start. However it was not totally consistent. After some fiddling it started working normally.
Today I'm getting the same crash, and it will not start from any folder. I tried re-installing, but no improvement.
It's been a few days since the last Microsoft Update. There was a recent Adobe Reader update.