Not really a MOSS related issue, but since we all use Remote Desktop Connection to our MOSS servers (right?), I figured this is a need-to-know-basis message.
At a sudden moment my Copy/Paste functionality stopped working on my laptop. On this laptop I have Virtual PC running and in this virtual PC I have a Remote Desktop Connection to my MOSS server. When I closed the RDC, my Copy/Paste worked again.
So even if you’re using a RDC in a VPC, it could block Ctrl-C/Ctrl-V on your hosting PC.