Nautilus just started misbehaving... it'd worked just fine prior to this. I've changed nothing on the machine.
I attempted to run Nautilus by double-clicking the icon on the desktop for my cell phone... the cursor clocked for about 15 seconds, but nothing else happened.
I opened Terminal, searched for all PIDs of Nautilus, and killed them all.
I scanned all the drives for errors. I did a SCRUB on the ZFS drives... no errors.
From Terminal, I issued
nautilus... the terminal hung with no errors. I had to Ctrl-C out to get back to the command prompt.
I rebooted... no change. I checked that all of the dependencies for Nautilus were installed, they were.
sudo nautilus, and Nautilus started right up, no problem.
I uninstalled and re-installed Nautilus-Admin, then attempted to start Nautilus from the command line... no change.
I uninstalled and re-installed Sushi, then attempted to start Nautilus from within Software Center... no change.
As I sat there pondering for five minutes, Nautilus popped up! It was working properly again. I closed it, and opened it again by double-clicking the icon on my desktop for my cell phone... it worked, opening nearly instantly.
Five minutes later, it's doing the same thing again!
And the whole while that Nautilus is doing this, I can access the drives from Thunar without problem.
Any ideas what could be causing this?