I had started on AutoCAD R12. It was a suitable program for my industry. Fast, efficient and seem to be a software developer that wanted to make its product versatile to the wider drafting markets. However that all stopped around R13 onwards. From that point on Autodesk has been lead by software developers with no industry understanding. This is a classic example of "OMG we made it too user friendly and now lets remove and make it hard for our PAYING customers" Shock horror right !!! They make us pay for their bug ridden program for decades and now obviously they might miss out on another cash flow so best to remove it is the answer. To be honest this software sucks compared to any other leading software on the market. I hate been forced to use it by my clients and other companies that still use it and I hate having to put up with the developers of this software. Just another reason to explore other products is all I can say and drop this software as soon as you can..