Thanks, but I think the practice is good anyway and I think it is probably a good idea to exercise the CD drives and the network ports while doing the install so we know they all work. I will have to generate a sound test to make sure those ports are working as well. I don't want to take a chance of missing a potential problem and having some student get left out on their first digital modes lesson. If anything, this exercise has made me hyper aware of the potential for things to go awry.