Hi Josch,

You shouldn't have to delete anything before downloading more B1.0
data. Downloads should simply accumulate. When you want to get rid of
all the data, just click on a B1.0 star, then "more info", and you'll
see a line reading "click here to delete accumulated data".

I'd try again (could be the server was having trouble). If it's
still not working, it might be good to know at what RA/dec you ran into
the problem; maybe it's a location-specific problem.

I vaguely recall that at one time, someone in Europe was providing
B1.0 on USB hard disks. Unfortunately, I never got any details on
this. He couldn't ship to the US, due to Customs restrictions
(probably worried the hard disk contained instructions to terrorists or
some such). Barring that, getting a disk from USNO (if possible) would
be your best bet, as Mike O'Shaughnessy suggests.

-- Bill