Well, I seem to have gotten the folders back, but it took 3 re-settings of the cookies.
Then I noticed also that I was recorded as last having logged in on April 15th, when in fact I've been logging in and posting all weekend (22nd and 23rd). It changed finally, and came up to the correct date.
Then, mysteriously, it's gone back to showing April 15th. Wierd, wacky stuff.
Thanks, terridarri, for responding.