> I have the exact same scenario. WinXP pro. INSTALLED A NEW
> GRAPHICS CARD.
> Now Remote Desktop connection on Port 3389 have no effect. The
> Remote client
> just acts like nothing happens when you press "connect" button.

Try to set "Hardware Acceleration" to None (Display Properties ->
Settings -> Advanced -> Troubleshoot -> Hardware Acceleration -> None)

Recently, i updated ATI video drivers to the latest version and Remote
Desktop stopped working with exactly the same symptoms. Looks like
ATI/nVidia drivers are being developed by the same intern in his spare
time. Extremely crappy software. Try to stick to the version that
worked.

--
Sincerely,
Eugene Sukhodolin
www.demoforge.com