BLOCKING GDM PROBLEM

[Jean-Marc.LACROIX]

Hello,

    I have a big problem with GDM.
In my research Lab, we have a central server with runs GDM as a chooser
for the other servers (team servers), and this chooser window is available
for each of the 130 Xterminals ...

    When GDM is freshly started everything works well, i mean i can see all
available servers in the chooser on the Xterminal, but after some time, some
servers disappear of the chooser window.

    The only way to solve the problem is to restart gdm with: 
/etc/init.d/gdm restart
which has the effect to logout all people connected on the Xterminals.

    This problem is a MAJOR problem as you can imagine easily, i mean that
more than 130 Xterminals are enable to connect to team servers.

Any help will be greatly apprecieted, i still want to beleive that 
UBUNTU (dapper)
is a good distribution.

Thank you in advance,

Jean-Marc.