Version: unspecified (using KDE 4.6.1) OS: Linux When I launch a program using kruuner, and use "run as different user-->root" option, krunner correctly launch the program, but when I want to use krunner again it doesn't respond. I checked with ksysguard and krunner process is still running. If i kill and restart krunner, or if I close the process that I previously started in krunner using "run as different user" option, krunner works again. I had this bug in kde 4.5.5 too. Reproducible: Always Steps to Reproduce: Launch krunner, start a program using "run as different user-->root" option. Actual Results: Krunner doesn't respond if you launch it again.
Works for me when using KDE SC 4.8 beta2. Feel free to reopen if it still happens in recent version .