Server reboot help? Did you close the desktop panel that is supposed to close automatically? It didn't for me on a v4.5 90 install. Took me two tries before it dawned on me what what happening. Also for me, because it died during system migration, I had to reinstall the application files. The second time, I made a backup copy of the clean system. Didn't need it after I figured out the issue, but it was there just in case.