Ok I changed that setting, but still does the same thing. I put in the software, and I hear it spinning, but then it just stops. I finally installed my interface, but how I did that was I searched "disk utility" and on the left hand side I clicked on it. On the lower right hands side reads, "Verify Disk." I click on it and one reads "The Volume Audiobox USB appears to be ok," as for the other disk it tells me that its corrupted and gave me a node (Node=1)? The way I was able to install my interface was by searching disk utility, highlighted it on the left hand side, then clicked "verify disk" then at the bottom left reads, "Mount Point:" Next to that was my interface and I clicked on that link and that was how I was able to install. I am not trying to install my pro tools that way or any other software. I just want to be able to pop in my software, wait for the screen to pop up and install (you know the way it should be), not doing this disk utility crap. I push in my dvd's and it plays just fine, but won't with my software cd's. So I pop in my software, the drive takes it in, i hear it spinning, then just stops out of no where. The drive does not ejects the disk it just stays in. I pop in a dvd and it works fine. Any other tips you can offer me? If so, I would highly appreciate it YOU OR ANYONE IN THE MAC WORLD PLZ HELP ME OUT. P.s.....I'm new to mac.