Thanks fellows, for the ideas. In the interim I thought of something that I was wondering might work. There is a "device" (I don't know what to call it) or little program called MULTISH4 that I have but never used. As I recall it allows one to install two or more different modded versions on the same drive. But I am not really sure that it would work in this case. I'd appreciate any thoughts you all might have. Thanks again.
Fritz