There are two issues at the moment:
(1) mmpool.org/statistics shows the wrong Difficulty value.
(2) Withdrawing NMC comes up with a "connect: null" message box.
Thanks for noticing (1). This was a caching issue on the webserver and has been fixed. (2) is a bug when namecoin balances hit a certain amount. I can process a withdrawal manually if you want until it gets fixed.