Ok, I think I've spotted an error in the database PM tables hence why you're seeing that, I'm just trying to work out what causes error that now



EDIT: Basically the database said you have an unread PM in one table, but that PM doesn't exist in another table hence why you don't see it - I can't see how that gets caused at the moment. I've deleted all those bad entries for now anyway so no-one shouldn't have that message any more for now (unless you've suddenly got another ghost PM from somewhere)