Hi, You might want to try that:
Open Konqueror check "ps -e|grep -i konqueror" Go in Konqueror menu and do "quit" check "ps -e|grep -i konqueror", for me it's still running >From that point on, either from plasma menu, or from command line, I cannot bring back Konqueror window. If I kill it, then I can have it again though. I've got latest sid version I believe. I haven't searched for upstream bug yet. It seems it is reproducible for another user at least. Chris