Mnesia: changing hostname

[Fredrik Thulin]

Hi

I am at an interop event (SIPit), where I got a new hostname. I had a 
database in a Mnesia directory. Mnesia seems to be starting just fine, 
but the tables are not accessible. My old hostname is listed as a 
stopped db-node in mnesia:info().

This isn't very strange to me, but how can I detect this state of 
affairs? Currently my application just fails to start, because the 
Mnesia tables are not present.

Thanks in advance

/Fredrik