Listening to every heart
Possibly because you are using your Mum's computer, Krissy. Also, if you do not go in to the Member's area to change your password, but simply change it from the post, that, too, could be part of the problem - it thinks your Mum is using another name, and as you know, we discourage bumping our own posts under psuedonyms.
Possibly. Ron could have another explanation altogether!