We bought a brand new in the box treadmill and just put it together. The belt is soooo nosiy. It is a Nordictrack, I checked out all kinds of reviews of this model online and almost all of them said it was quiet so I am thinking it is not a broad issue. I tried lubing it but still load. I plan to contact the company but before I get down and search for the serial number I was hoping some here might have some experience/tips on how to quiet it down a bit.