Version: 1.10.3 (using 4.1.3 (KDE 4.1.3) "release 4.9", openSUSE 11.1) Compiler: gcc OS: Linux (i686) release 2.6.27.7-9-default I created a DIMAP (but I think it is irrelevant) account and downloaded half GB of data. After I used the program for a day (without exiting) KDE crashed with an X restart (it's not the fault of KMail, of course). I restarted Kontact and I realized that I have no "Receiving Account" and I have no letters. The sent mails and the SMTP server settings are OK. In addition all of my interface settings are purged.
Confirmed with KDE 4.1.87 (KDE 4.1.87 (KDE 4.2 >= 20090101))
*** This bug has been marked as a duplicate of bug 169166 ***