gdm issues with multiple servers

["Michael A. Peters" <mpeters mac com>]

I'm running gdm 2.4.2.95
It is compiled on my x86 box (an LFS system) using gcc 3.3.1.
The entire system (except kernel) is gcc 3.3.1 compiled.
XFree 4.3.0.1, nVidia's closed source but wicked driver.

gdm works great.
Then I decided to take an old 233 iMac out of my shed and put YDL on it.
Since it has a super blurry screen (why it was in the shed for the last
two years ...) I set it up to run xdmcp

Then on my x86 box (the one with gdm 2.4.2.95) I edited the gdm.conf
line and added:

1=Terminal -query cvs

(cvs is the hostname of the imac - that's what I'm using it for)
It works very well this way - except for two issues.
I think they are not gdm's fault, but I don't know for sure.

When the xscreensaver starts on the X11 display for the mac, the x
display crashes and restarts - dumping me out of my session.

The other issue is that when switching between the x86 display (running
gnome 2.2.2 if it matters which I doubt) and the iMac display (running
whatever gnome ydl 3.0 has) - occasionally the x cursor does not move at
all - and then that xserver crashes and dumps into log in.

I have to assume these are XFree issues and not gdm issues, but I
thought that *maybe* people who play with gdm might know a work around.

If it matters - my kernel on my x86 box is compiled with gcc 2.95.3 -
which means my nVidia driver is also - and I had to edit their makefile
to remove a compiler option to get it to build.

Sorry if this post seems scatter brained - using gdm to log into
multiple boxes from one is a brand new concept to me.