Version: (using KDE 4.2.0) Compiler: g++ (Debian 4.3.2-1.1) 4.3.2 OS: Linux Installed from: Compiled From Sources After logout/login I have konqueror and dolphin icons in the Quicklaunch, even though I am deleting them every time. Icons I have added do not disappear.
Same problem here with KDE 4.2.00 (KDE 4.2.0) "release 90.1" on openSUSE 11.1 x86_64, also with plasmoids on the plasma sesktop.
Possibly related to Bug 185608.
This bug happens not just when logging out and back in again, but also when Plasma crashes while logged in. The system automatically restarts it, and all the deleted icons from the panel and desktop reappear.