I don't mean to dig up an older thread, but my problem seems like it may fit here... or somebody here may have an answer, anyway.
My hard drive recently crapped out on me. I had a legit AutoCAD 2009 loaded (I didn't buy it, but a client gave me one of their unused seats to cover an invoice they weren't able to pay). I used a backup image to restore my system to a new hard drive and everything seemed to be business-as-usual until I started up AutoCAD to do some work. Suddenly, my AutoCAD is asking for a new activation code. The one I had isn't working and the program is saying that the serial number I have is invalid.
I'm wondering if something in the registry got out of whack or something along those lines? Some of the research I have done shows a keygen program called X-Force keygen as a possible solution, but I can't seem to locate it except through torrents. I have no experience with torrents and have no desire to start. Anybody have any ideasfor me?