I'm in a new company and I've been given a PC that has been rebuilt due to a hard drive failure and the job of re-installing AutoCAD LT 2010. I have the original discs and serial number.
When I try to activate the licence I get the error 'The serial number you entered is not valid, try again (1).'
I've tried sending requests for customer support but just get rather unhelpful emails emails asking me to send a message, So here I am.