Hi Tim,
Sorry, I didn't want to step on any toes. My source for the "less than full copies" is based on my computer guru's statements and not on my research. Here is the problem I had, I installed VM Fusion on my mac and could not access the shared printer (necessary for me to send estimates, drawings and bills). The only way I could print was using a virtual printer which printed using virtual ink on virtual paper, or converting the documents to PDF and emailing them to myself. Therefore the boot level solution. A year or so later my wife got a Mac and installed Parallels. She needed windows ( XP) to run a desktop / cloud gradebook program. I don't know exactly what happened, the guru was helping her, but she was left without the program or grades the week they were due. As i recall and according to the gradebook's help line this was a known bug (to them). Her solution - the school system is getting her a PC for professional use, she continues to use Parallels on social networking and scrabble.
I wish that it had worked for me but it didn't. I can believe that Parallels runs Linux/ Unix well, after all OSX is based on Unix isn't It?
On the original issue. I tried SU on the PC side and had no problem inferencing using any of the SU native tools I tried.
Happy sketchuping, John