....but I found I had been logged out before I could finish composing the message.

I have figured out a make-shift way to post (but I sure hope I don't have to do this forever). First, I compose the text elsewhere, then return to the forum and click reply. If I quickly copy and paste, and then submit, I (usually) stay logged in long enough to complete the transaction.

Sorry the OP wasn't as clear as it should have been. The most serious problem is that I can't seem to stay logged in to FT for any length of time, but I have NOT been intentionally logging out from my PC. Rather, I am being logged out against my will by unseen forces that are keeping me from enjoying the complete FT experience.