When I leave Kontact open and log out, then log in again, Kontact is re-opened (as expected), but its window position is wrong. Steps to reproduce: 1. Put a panel at the top of the screen 2. Maximize Kontact window - it covers the area that is not occupied by the panel. 3. Log out and log in again Expected behaviour: Kontact window should be in the same place as before Actual behaviour: Kontact window has the same size as before, but it is shifted up to the top of the screen so that its window title is hidden by the panel - and there is a little bit of desktop visible at the bottom of the screen.
Hmm, this behaviour doesn't happen every time. Maybe it has to do with akgregator - sometimes I see a message in Kontact saying that akgregator did not shut down correctly the last time it was run.
Does not happen regularly - closing this bug report myself.