Mac Pro will not shut down after Lion upgrade I use Font Agent Pro as my font manager of choice. I just upgraded my 2007 Mac Pro from the latest OS X 10.6 to 10.7.5 lion.

I was having a problem with Postscript Type 1 fonts not being available to Adobe or other applications, so I cleared the font cache from Terminal.

sudo atsutil databases -remove


After doing so, my Mac will not shut down - when I try to shut down the screen goes gray but the cursor can still can be moved around 

I have to hit the power button to shut down manually.

Any ideas as to why this is happening?
I've been working through the issue with Font Agent Pro Support. Evidently this is due to the Smasher Application having issues clearing the font cache if Adobe Acrobat is installed.

The solution for me was to remove Smasher. Shut down, reboot into safe mode, and restart.

That seems to have fixed the issue for now at least.