Intermittent non-responsiveness of system

Hi

Over about a month I have experienced occasional non-responsiveness from 
my system (which is cvsup'ed and built roughly weekly).

Whereas previously I thought the system had hung, today my system 
resumed from where it left off after about 10 minutes (on two 
occasions). During this period of inactivity I was able to ping the nics 
on the BSD box from another machine on the network, but was unable to 
ssh into it.

Note, I have only noticed this behaviour when I am running X.

Is there anything I can do to help resolve the problem?

-- 

Regards

Peter

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