In message <m19LrzA-000IzIC@p850ug1>
          ard(a)p850ug1.demon.co.uk (Tony Duell) wrote:
  Didn't you have a relatively high -ve voltage on a
data line? If so, you
 might well have killed a buffer chip... 
They've all been replaced with new
chips, though... Guess I've got the
dubious pleasure of looking for dead buffers and shorts...
Later.
--
Phil.
philpem(a)dsl.pipex.com
http://www.philpem.dsl.pipex.com/