One of our main server rooms will be undergoing maintenance on December 16, 2010. This will mean some of the FAH servers will be off line on that day. It looks like most of the key FAH infrastructure will be up, but there will likely be WU shortages on that day since a large fraction of machines will be down.
We are working to optimize what we can by distributing jobs to servers in other server rooms, but we wanted to give donors a heads up in advance so they know this is coming.