Sorry, so many questions, but...

I have a couple internet email accounts, I've since deleted one. I went to the 'service book' section, and found the one I wanted deleted, and clicked the thumbwheel, and selected 'remove' or was it 'delete', nonetheless, it removed it.

My only issue is, the icon for that mailbox is STILL on the main menu. How do I get rid of it? I know I can hide it, but...

ps: you can't hide it on all theme's, only seems to work on certain theme's...