Xserver mysteriously dieing

[Scott Henson <shenson2@silvercoin.dyndns.org>]

Recently my X server has been dying unexpectedly and unpredictably.  I
was wondering if anyone could help me diagnose this problem.  I am
running Unstable with Xfree86 4.2.1 and Gnome2 packages from
experimental.  This seems to occur when my computer is idle or possibly
when I lock the screen(using xscreen-saver).  I am totally stumped on
this one.  In my logs I see almost nothing.  In ~/.xsession-errors I
have basically this error repeated over and over again:
FAMOpen failed, FAMErrno=0

Also the only thing I can find in my system wide logs are:
log/XFree86.0.log:AUDIT: Wed Oct 23 18:44:04 2002: 2812 X: client 2
rejected from local host
log/messages:Oct 23 18:44:00 GreyGhost gconfd (shenson2-451): Received
signal 15, shutting down cleanly
log/messages:Oct 23 18:44:00 GreyGhost gconfd (shenson2-451): Exiting
log/daemon.log:Oct 23 18:44:00 GreyGhost kdm[391]: Server for display :0
terminated unexpectedly
log/daemon.log:Oct 23 18:44:04 GreyGhost kdm[2813]: session start failed
log/syslog:Oct 23 18:44:00 GreyGhost kdm[391]: Server for display :0
terminated unexpectedly

Any help? Thanks

-Scott Henson