From: Steve on
HP linux thin clients have problems connecting to 1 of our 2 nearly
identical Server 2008 Terminal Servers. they can't connect each day
until they are rebooted.

From a linux desktop I tried issuing rdesktop server2 and I get an
error:

steve(a)Steve:~$ rdesktop server2
WARNING: Remote desktop does not support colour depth 24; falling back
to 16
<I get a remote desktop connection>
steve(a)Steve:~$ rdesktop server1
disconnect: Internal licensing error.

To fix it, I chown the directory so my user can't read it. I can't do
this on HP's linux thin clients, however. Just after the above snipet
of code I did this (to show you how this works):

steve(a)Steve:~$ rm -rf .rdesktop
steve(a)Steve:~$ rdesktop server2
WARNING: Remote desktop does not support colour depth 24; falling back
to 16
<I get a remote desktop connection>