Can't cut and paste or "Cannot empty the clipboard" in Excel
Seems rdpclip.exe misbehaves occasionally, preventing use of the "copy" function (via Ctrl+C or menu) in Windows or Office 2003
The temporary solution seems to be to kill the rdpclip.exe process. To do this go to the Start button and click Run. Then type
taskkill /F /IM rdpclip.exe
There is a hotfix for Windows 2003 server to prevent this, but in this instance there was no connection to a Win 2003 server, it was a Windows XP computer that was acting as the server being connected to.