[Brian]

Sorry for the confusion this is causing!

I suspect that one of the options under the View menu got changed; the projects are still in the database (since they show up in the pop-up when you make a new item), but they're being hidden from view.

The easiest way to get everything back to normal is probably to select
Perspectives -> Projects
from the menu bar. (If that doesn't work, the "All Items" option under the same menu almost certainly will.)

If that doesn't get you back up and running, feel free to give us a call at 800.315.6664 and we'll be happy to help.