I have no idea what you just said...
Are you sure you didn't accidentally lock Messenger?
quote:
If you've pressed Ctrl + Space to hide MsgPlus, you can get it back by double clicking the Messenger Lock icon, which looks like a grey disk with tubes underneath. This is in the panel at the bottom right of your screen, by the clock. If you don't recognise the icon, you can see how it looks in this image: