I've been running the cmdline client  for several years, and using SETI Hide to
cache work units.  

On Saturday, SETI Hide stopped sending completed units back.  I stopped the
client and removed it and SETI Hide from my computer.  Why not start fresh? I
thought.  It has worked before.

I've downloaded the cmdline client again and go through the returning user
routine, but my e'mail address was not recognized.  And, I've not been able to
get the client to connect to the server as a 'new user' either.  

I've run SETI since it came online and figured to stay with it until the last
dog is dead.

Is the problem with my computer? The SETI server? Something else?  

Thank you in advance to the smart people who've helped before.