Does anyone know what two flashes of the power light indicates on a /20?
 I just got one, but it doesn't seem to boot.  I can't get anything on a
VT220 plugged in to the serial port, with or without a keyboard plugged
in, with or without the PMAGB-B installed, and with or without a
null-modem adapter.  I did notice what looks to me like a burned trace
on the back of the framebuffer.  :(  It's so small that I really can't
tell for sure, but I suspect I have a defective powersupply and a hosed
motherboard.  :( :(

Bob