Nancy and Annette have been having a locking issue with C&P and Virtual PC. I have also heard of this issue once from Bryan, and once from Heather. Heather, Bryan, and Chad report that C&P is, otherwise, working fine under Virtual PC. A Windows laptop has been provided between each Mac workstation for use when issues arise with C&P on a Mac, and for previewing work on a PC. 

I believe that one of the Windows or Mac updates that I have done has created an incompatibility that causes C&P to have issues with OSX's Classic mode. Unfortunately, this really could not have been predicted, and probably cannot be reversed. The solution is to use PC software to connect, or upgrade to an Apple OSX native version of C&P.