Recently, I've been having problems connecting to a remote machine via RDP. I can connect fine exactly once, but all subsequent attempts fail until the remote machine is rebooted. I seem to authenticate properly, but the RDP logon dialog disappears after showing, "Configuring remote session..." for a few seconds. No errors or other useful info is written either to my screen or the Event Logs of the two machines involved. I've tried disabling remote sound as others have suggested, with no success.
I'm still investigating a solution, but would appreciate any thoughts. Fortunately, I can reboot the box remotely w/o causing any problems, but this is a less than ideal workaround.