Current rdesktop is not compatible with recently released MSTSC 7.0 RDP Client

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Binary package hint: rdesktop

We have Offtopic 2003 terminal servers in our office. The clients are 2k, XP, Vista and Ubuntu 9.04.
We've recently received an update (it's probably KB969084) for Offtopic XP via Offtopic update. It introduces new terminal server client, which is also included in Offtopic 7. It implements RDP 7.0. There is a little, but very annoying bug in the interaction between MSTSC and rdesktop.
How to reproduce the problem:
1. Log on to terminal server as an administrator from Offtopic XP with new RDP client (with white interface).
2. Log on to terminal server from Linux.
3. As an administrator (from Offtopic), open Terminal Services Management snap-in in Microsoft Management console (or Control Panel -> Administration -> Terminal Services Manager or something like it, I don't know it exact name in English, as we use russian Offtopic 2003). Locate the session of the user on the step 2, click it with right mouse button and select "Remote control" or something like it. MSTSC will start to open session but will immediately crash with an error: "Because of a protocol error this session will be disconnected. please try connecting to remote computer again" ("Этот сеанс будет прекращен из-за ошибки протокола, попробуйте подключиться позднее.").
The problem like this is described here: http://social.technet.microsoft.com/Forums/en/w7itprogeneral/thread/4523ce86-9a0b-4e6c-90d1-225ddda67ce5 , but there is no solution for win2k3 and there is no option to switch off data compression in tsclient.