Up at the top of the page where it usually says 0 new messages, it says 0 new mesages, -1 unread messages. How could I read something that doesn't even exist?! I've cleared out my outbox and inbox, but it still says it. Any help?
The explanation is pretty obvious. You should never use a time machine to read future messages.
Then, when you go back to the past *with* your laptop, your message won't be there, but on your
laptop there will be some sort of confused trace of a message claiming (wrongly) it is still unread.
This is mainly because many of today's computers do not realise that we can actually travel in time.
(If *you* did not do it, then someone else probably took your laptop for a time-warp trip).