win 7 "because of a protocol error, this session will be disconnected"

I am connecting to server 2003 R2, Terminal Services, as an administrator, using RDP from Ubuntu 9.10 .
I am trying to remote control users connecting to the same server who are using Windows 7.
I can connect, but as soon as I try to do anything they get disconnected with a message that reads, "because of a protocol error, this session will be disconnected.  Please try connecting to the remote computer again".
I have tried every different RDP application for Ubuntu I can find, same error on each.  I have turned off every experience option on both the Win 7 and Ubuntu machines.  same error.

I have no issues if I log in to server 2003 using XP or windows 7 to remote control windows 7 users.  I also have no issues using remote control if I log in using Ubuntu and the users are anything other than Windows 7.  It is strictly if I am using Ubuntu and the other users are Windows 7.  Obviously something new with Windows 7.

Does anyone have any solutions for this?
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Maybe you could install VNC server on the Win2003 server and use a VNC client on the Ubuntu machine to remote control the W2003srv through VNC?

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FJS159Author Commented:
It looks like I will have to use VNC, even though I would prefer not to.
The issue appears to be that Windows 7 uses protocol version 7 for RDP.  Ubuntu uses 5.2
There is a protocol upgrade for XP and Vista, thus I have no issue when I use them, but I have found no similar upgrade for Ubuntu.

"All editions of Windows 7 include Remote Desktop Connection.
      You can use Remote Desktop to initiate a connection from any edition of Windows 7.
      You can connect to computers running Windows 7 Professional, Windows 7 Ultimate, or Windows 7 Enterprise.
      You can't use Remote Desktop Connection to connect to computers running Windows 7 Starter, Windows 7 Home Basic, or Windows 7 Home Premium."
FJS159Author Commented:
VNC Server doesn't solve the issue but it is an acceptable work around.
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