Widget not displaying in
I've downloaded a couple of news scrolling plugins (Information Reel, Ditty News Ticker) but each one had the same problem. I'd add them (not at the same time) to the Main Sidebar but they wouldn't display and when I went back to the Widgets page they weren't listed in the Main Sidebar drop-down list.
The only other widget in there is a Twitter feed (Really Simple Twiter) plugin which is working. I've added the Text widget and that works fine.