Somebody alreay asked this at documentation page so I just copy&paste the question as I have a similar problem:
"Some of my contexts now have asterisks * next to them - and I can't load them. When I choose one of those contexts, it displays the default context instead. I have no way of managing those contexts any more - they were created by me and I'm the administrator - how do I get at them, and what is the asterisk all about?"
