Got a refurbished unit, but when I contacted ASUS they said that my serial was showing as a new unit, with 7 months left on the warranty. Ok no biggie, but I guess when they were refurbishing it a hair got caught in the LCD screen, I checked to see if it stayed or showed after rebooting, screen cap, etc. It def looks like a hair in the LCD. So contacted ASUS they said when I get back from Afghanistan to send it in for repair. Noticed today when it was sitting on my lap, that as I tapped my feet something sounded loose inside, on both tht left and right side. Is this normal? I am thinking based on where it sounds like it is coming from it might be both of the fans. How can I check this out? Also does opening it up to add a HDD mess with my warranty at all? Also when booting up the DVD drive makes a quick zip sound that is quite loud and have never heard on a laptop before, is this normal as well? It is DVD not Blu-Ray. Thank appreciate the feedback. Other than that very happy with the unit, other than fingerprints showing on every aspect.