Didn't they have their main A/C unit crash which knocked out some of their main machines.
Wait here is the quote from their director
BokEinstein@Home experienced a major air-conditioning failure about 24
hours ago and will be off-line for at least another 24 hours.
(Apologies for mis-using the mailing list, but this is currently the most
effective way to 'spread the word').
Cheers,
Bruce