I installed korganizer with add/remove applications and it didn't show up. I uninstalled and reinstalled it and clicked on the 'to open an application double click on it' window before I shut a/r apps and it came up on my panel. I filled in some stuff. I restarted the computer and it was gone. I've looked all over the place. Where is it and why does it keep leaving the panel? I did it again and the stuff I had was still there and then restarted the computer and the panel thing was gone again.

Where is it?

Try running "kbuildsycoca4 --noincremental". Alternately, the command "korganizer" should start it.