For those who are unaware, you can use these steps to make banners with a background like that "code-rain" effect from the opening of The Matrix. Step One: Make a new document. I use 400x100. Step Two: Unlock the first layer by double-clicking it, then click OK in the dialog box that pops up. Fill this layer with black. Step Three: In the Menu Bar, go to FILTER > TEXTURE > GRAIN... Choose the following settings: Intensity 90, Contrast 45, Grain Type: Vertical. You can fiddle with the intensity and contrast, but the grain type MUST BE VERTICAL. Step Four: Create a new layer. Change its mode to "Overlay". Fill that layer with the color you want. In my example, I've used bright green. Whoa. From here you can do what you want with it.