I am using Windows 7 Remote Desktop client to connect to xrdp running on Fedora 15. It connects with no problems and I am able to log into my KDE desktop after entering username and password.
But after maybe 2 to 5 minutes, the mouse clicks will no longer work. I can still move the mouse and I can hold down mouse to move my KDE program windows around. During that 2~5 minutes, I was doing noting special. Maybe switching back and forth between Windows and Linux (xrdp session) using Alt-Tab a few times. Did some typing on Windows and Linux (xrdp session), copy&paste. That's about it.
On my Linux machine, I am running xrdp as a service. Here are some information about it:
$ ps ax | grep xrdp
1335 ? S 0:21 /usr/sbin/xrdp
1383 ? S 0:00 /usr/sbin/xrdp-sesman
$ xrdp --version
xrdp: A Remote Desktop Protocol server.
Copyright (C) Jay Sorg 2004-2010
See http://xrdp.sourceforge.net for more information.