Gee 3D- One of the first thing I tell my Photoshop classes is that there are no inches in PhotoShop, just pixels! Some file formats support an inch "tag" that determins how big something will print, but in Photoshop you only work on pixels. I've seen things like "my web page pictures were saved at 300 dpi so they are high quality", the dpi setting is meaningless for anything while on the computer, especially for web pages. When you scan or prepare an image always think how many pixels are required for the end application (and it gets complicated with the 2 X lpi = dpi rule, which I will not go into right now), but always think in terms of pixels, inches (and dpi) is just a figure of speach!