Problematic IPX

[Mauricio]

	I turn my IPX (running Debian Woody 3.0 r2).  I ssh to it. 
All is peachy.  I go do groceries.  When I come back, I find out it 
went back to the openboot prompt.  What is going on here?  I stick my 
hand behind the fan and it does not seem to be hot or anything.  What 
else should I check?  Which log files could be helpful in my quest?