Is anybody seeing issues like this recently?

http://imageshack.us/photo/my-images/801/img20110615084342.jpg/
http://imageshack.us/photo/my-images/815/img20110615084415.jpg/
http://imageshack.us/photo/my-images/221/resi.png/

The Ubuntu splash screen and ldmdialog appear to be at native
resolution of 1920x1080, but the Windows RDP logon and desktop screens
appear to be at 3200x1080. This started happening here yesterday.

Things that have changed in my network recently:
-Updated to Ubuntu 11.04 last week from 10.10. We're using the
rdesktop package from
http://ppa.launchpad.net/otto-kesselgulasch/testbildtest/ubuntu to
deal with the disappearing mouse pointer.

-Ran some Windows updates on the terminal servers last week. I'm not
sure what they were, but they were post-SP1. We're using a pair of
Windows 2008 R2 Standard servers and both are showing the wrong
resolution.

I have 3 thin client setups:

-HP t5710 using various 19" monitors--not having this problem
-HP t5730 using a 19" HP monitor--not having this problem
-Intel D510MO using Samsung SyncMaster P2370HD tv monitors, VGA
connection--all having this problem.

All the affected machines use these options for rdesktop:
RDP_OPTIONS="-rdisk:usbdisk=/media/root -rsound:local -z -a24 -xl"

The -f option in rdesktop appears to apply by default, so I don't include it.

Things I tried in lts.conf, one at a time, and the result:

XRANDR_SIZE_0=1920x1080 -- 1920x1080 in Ubuntu, 3200x1080 in rdesktop
XRANDR_DISABLE=True    -- 1024x768 in Ubuntu and rdesktop
X_MODE_0=1920X1080    -- 1024x768 in Ubuntu and rdesktop
RDP_OPTIONS=[added -g1920x1080] -- 1920x1080 in Ubuntu and in rdesktop
**here's the fix

Any idea why I now have to manually feed the geometry to rdesktop when
I never had to before? why I'm not having the same issue on smaller
monitors?

db

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