A note from our ISP (updated):

On Wednesday, December 17th, 2008 between 6:00AM and 8:00AM EST, we will perform maintenance on the server hosting your account. reboot of the server will be required.  We do not expect the downtime to exceed 15 minutes.

Be prepared to--gasp!--do something else during those hours.  Me, I plan to be shouting in my most evil voice, "Jag är vaken!  Jag är fruktansvärt vaken!"