RDP unstable after installing SP2 to Microsoft Storage server.

Hello.

I find several similar issues on the internet, but no working solution.

I have following scenario:

A new network 3 MS server 2003 and 2 Microsoft Storage Server 2003.
I use RDP to manage the servers.
I can so all microsoft updates & patches without problems on the Microsoft
servers 2003.

For the both storage servers I have a problem.
As soon as I install SP2, I can connect with RDP, but the connection is so
slow, you cannot work with it. (Example, it takes up 20 mouse clicks and a
delay of 20 - 30 sec. on the start button untill it respons. Typing is
impossible due the delay and lost characters.) >> The processor load is
normal as well as memory use. The console works fine. (Connect via RDP to the
consile >> mstsc.exe /console has the same problem.)


It's no hardware issues, since both are completely different hardware.
Even one server is 32 bit the other is 64 bit.
As soon as I uninstall SP2 again, everything works normal again. All other
patches and updates can be applied without any problem.
I would like to install SP2 but the server is not managable anymore remotely.


All help is appriciated.