1. Start by creating a new RGB image. The image on the left is a 288 x 288 (pixels) example. Create a new layer. Now click the Channels tab, which is located between both the Layers and Paths tabs. Create a new channel. And make two lines using the line tool, they should intersect each other half way thru the image. 2. Using the Single Row Marquee tool create a little square right on the intersection. It should look something like the image on the left. 3. Next, go to Edit > Define Pattern. If you are using Photoshop 7.0 you will have to name the pattern. Click on OK. By using the Eraser Tool, erase the two lines that you made earlier. Click on Edit > Fill. Use Pattern (select the pattern that you made earlier) 4. Hold Ctrl and click on the channel to select the whole image. Go back to the layers palette and click on the layer that you made. By using the paint bucket, fill the whole image by the color of your choice. 5. Play around with the image...have fun.