I have been running Toad (v184.108.40.206) from my USB stick for ~2 months.
(Thanks to Bert Scalzo!!! - http://www.toadworld.com/BLOGS/tabid/67/EntryID/312/Default.aspx)
Today I came in and I have no Session list on the Database Login screen.
I made successful connections to a few instances, and these still are not showing in the session list - anyone know where this is usually stored or what setting I may have unwittingly changed?