James, who may I ask is your distributor? They seem to know more about this problem than Nemetschek tech support. I really do believe it is a problem with the dongle, I've tried installing now under MacOS 10.1, 10.2, and 9.2, and gotten the same error messages with each. However I've been having a hard time getting in touch with anyone at Nemetschek who is actually taking any steps to solve the problem. The best they've come up with is to offer me a full refund. I am certainly frustrated that it's been almost a month and I still don't have a working copy of the software but I'd rather have the program running than have my money back, and it seems from your experience that this is a fixable problem.