The RDP protocol component X.224 detected an error in the ..

Event Type: Error
Event Source: TermDD
Event Category: None
Event ID: 50
Date: 23/10/2009
Time: 08:38:45
User: N/A
Computer: SYSTEM5
Description:
The RDP protocol component X.224 detected an error in the protocol
stream and has disconnected the client.

For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 00 00 30 00 02 00 7e 00 ..0...~.
0008: 00 00 00 00 32 00 0a c0 ....2..À
0010: 00 00 00 00 32 00 0a c0 ....2..À
0018: 00 00 00 00 00 00 00 00 ........
0020: 00 00 00 00 00 00 00 00 ........
0028: 09 00 00 00 03 00 00 2c .......,
0030: 02 f0 80 64 00 07 03 eb .ð?d...ë
0038: 70 1e 08 08 00 00 34 db p.....4Û
0040: 24 38 c6 00 99 a7 12 00 $8Æ.?§..
0048: 17 00 f0 03 ea 03 01 00 ..ð.ê...
0050: 00 01 04 00 24 00 00 00 ....$...


---

Any ideas how to fix this error?

Microsoft Windows XP [Version 5.1.2600]

I have also reported this issue here:
http://forum.ultravnc.info/viewtopic.php?p=60193
http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Server/...ote_Des

but I'm getting nowhere...

Can you help?

Thanks.