Can I override the error AutoCAD gives about my older video card?
Thanks to Asmus's suggestion I found that if you remove your graphic card's model from the file unspt_gfx_cards you can install AutoCad. So to recap:


Copy the .mpkg package out of the DMG file to some place like your Desktop
Right click on the package and select 'Show Package Contents'
Browse to Contents/Resources/unspt_gfx_cards
Right click unspt_gfx_cards and open with textedit
Remove all lines that contain Intel or GMA(for your macbook) and save
Double click on the .mpkg to install without hardware restrictions


Not sure if you will have any problems running Autocad but at least you should be able to install it.