Weird. My iPod (15 Gig) is a couple of years old and works like a beaut' when I run. I run everyday on a treadmill at work for 20 minutes and it rarely skips (when it does, it always takes about 30 seconds to recoup itself but then goes right back where it left off on whatever song I was listening to. And I have an awesome armband (made by Marware) that I got directly from an employee of an Apple store that fits around my arm (bicep), keeping the iPod pretty secure from any vibrations and kicks all sorts of butt! SR, make sure you are tightening your iPod securly if using an armband, otherwise if you are running and trying to hold it, best of luck, that's the problem - I tried it that way and had the same problem (plus it distracts you from running)! I hope your roommate showed you how to reset your iPod as it's a handy way to "kick it in the shins" when it's acting up.