LottaNZB disappears when working

[AraiBob]

I just installed Ubuntu 11.04, then upgraded to 11.10 I used NewzBin for years to manage my nzb downloads and just quit Windows 7 to do the Ubuntu installation. I am having a puzzle.

I can start the downloads, but after some 'time' the open window vanishes. Is it still working?

I can see an icon at the top of the screen. however, when I click on it I see a window, but no data, no status, etc. In fact, all is greyed out.

Is it still working? How will I see the progress of the downloads? In the message log, I got this:

"17:31:55 Starting LottaNZB 0.6...
17:31:55 Could not start session: No session has been selected."

I use GigaNews and in NewzBin I installed both of the Server address, One for the U S, and the other for Europe. When I entered server information in LottaNZB, I forgot to do the U S one. But when I had the web interface [ http://localhost:8080/queue/ ] for
SABnzbd+ 0.6.8 I can see the queue of nzb files, and I did specify both servers. [aside note: some times a specific part (email) is missing on one server, but is on the other server. By using both I tend to get a better result.]

How to keep LottaNZB visible?