Hi all! So I am trying to reinstall Solidworks 2011 on my machine because it has been reimaged and wiped clean, and when I insert the 64-bit version dvd is does absolutely nothing. It even has a difficult time just reading the dvd. Honestly, it sits there forever just spinning the dvd around and around. I just got upgraded to Windows 7 (Service Pack 1) 64-bit operating system, and my machine has an Intel Core 2 Duo CPU T9900 @ 3.06GHz with 4.00 GB RAM.