Hi Robert, welcome and thank you for your question. My name is ***** ***** I am glad to assist you today.
I am very sorry about your issues. Is this a NEW installation of Autocad release 12 in this computer? Or has this been working in this PC and you just reinstalled it?
Also, is this PC running on Windows XP, Vista, 7, 8 or 10?
Please let me know by replying to me here so that I can help you further.