Hey guys. I'm picking up a broken Nikon 18-70 DX lens from someone for $25. The lens still autofocuses and meters with DSLR bodies properly, but it won't zoom past 24 mm or so. I'm planning on picking up this lens, since it's relatively inexpensive, and trying to repair it myself. If I mess it up, it's not too bad of a loss in my opinion. Is anyone aware of how to fix this problem (I've read on the web that it's a single loose screw), or know of any websites that give step-by-step instructions on how to take apart lenses and put them back together (pictures would be a great benefit!). Thanks everyone!