I logged in this morning, and I didn't have to enter my PIN number. When I went to edit my PIN, I noticed I didn't even HAVE one any more. So I tried to reinstate my PIN, and it wouldn't let me. What's going on? Is anyone else having this problem?

I've never used one, so I can't tell you about my personal experiences. Whether or not others see this, I think you should submit a bug report on it. It may be a security issue that needs fixing.

My PIN is still working, but I don't use it for when I log in. A bug report or ticket may be a good idea though...