I'm begginning to think this is a major server issue actually... In the past day or two we've had probably at least 5-10 threads stating this same thing. Except for WLM's servers having a lot of issues, there really isn't any other logical explaination that I can think of.
http://shoutbox.menthix.net/showthread.php?tid=63464
http://shoutbox.menthix.net/showthread.php?tid=63395
http://shoutbox.menthix.net/showthread.php?tid=63219
Those are a few threads similiar to what you may be experiencing... Not sure what the problem is though.