If the computer you're using has a version of Adobe Acrobat Reader less than 3.02, AcroRead will hang when starting the tutorials if I-DEAS is already started. The error message says that a file could not be found or that it detected a loss of communication with the I-DEAS license daemon. This problem probably occurs because of a glitch in the steps the computer performed when you logged in. Try logging out and logging back in again. If it isn't mounted after you logged in again, you probably need to go through the steps outlined in the first homework to mount the drive again.
Item is currently in use by another user.
If you try to open a model file and get the message above, it probably means that I-DEAS hung your machine and you had to power cycle it to get it running again. There is a lock manager within I-DEAS that prevents two users from accessing the same model file at one time. When you exit I-DEAS normally, the lock gets removed, and your file is once again accessible. If the computer crashes or hangs, the lock may still be in place. The unlocking process needs to be done at PSU, so Dr. Wells is only a candidate for the job for a few hours per week.