I often ran into an issue with CoRD failing to copy/paste between my host machine and my remote desktop machine. This only occured when multiple remote desktop session were active. The clipboard chain gets broken and copy/paste between the host machine and the remote desktop stops working.
To solve this, you need to execute the following batch file on the remote machine:
@echo off taskkill /IM rdpclip.exe /F start %SystemRoot%\system32\rdpclip.exe exit
CoRD development is dead, and cince there is no alternative (free, with tabbs) ... we do what we can :(
Yeah, I know. I'm currently trying JumpDesktop (http://jumpdesktop.com/). I'll post an update on my blog after I tried it for a while.
Unfortunately, it's not a free :-( ...