Do you still have access to the old computer? If so, then try to change the project name, by going to the Project Selection, highlight the problem project name and click the change project info button. Type a different project name and click OK. Then make a new project backup. Take to new computer and try the Restore Project again. If still having trouble, it would be best to call our support line at 800-282-4103 and Technician answering the phone will get more detailed on the issue with you.