I have installed LogicPro Student Version on my 20" iMac c2d 1gb. when trying to run the program all the inputs, insturments and effects loaded with the program have slashes through them, rendering the program useless. I have the program installed on another machine. Is that the reason, also is it legal to have the program on two machines? I only have one usb key for it so I don't think that would be the issue but I am at a loss. I have a 17" mbp cd and it works great, originally installed here. Now I added the iMac and use the laptop when I am editing on the go. any suggestions?