I have the D2D download version, I got it to work by doing this: 1. Unpack the zip file that was downloaded from D2D. A folder should show up. 2. Open "Disk Utility" on you mac. 3. When Disk Utility opens, click on the "+new image" tab. When the drop down menu appears, start with the top dialog box. Name it "Sims 3." 2nd…
RAM is the one thing that you're allowed to change on your own without voiding the warrantee. If you have a mini I'd advise you to go to an apple store. Otherwise change it yourself.