"Clicking Brick Syndrome"- SOS!

I have a LEGO Mindstorms NXT 2.0 device I’m setting up for the first time (I found it in my parents’ basement and am looking to test and possibly move it on Craigslist for them.) I assembled the first basic robot according to the instructions, and tested the brick was functioning well and everything, scrolled through all the old projects on it, etc. Then I decided to test the disc was functioning by installing the software on my Windows 7 laptop (the only Windows device I own, the rest is...