I tried that too. First I tried creating a pattern based on a 1" x 1" new document (300dpi). Ctrl-A to select all then stroke with a 2 pixel inside stroke. Use that as the "define pattern" and it turns out poor. So I looked on the net to find tutorials on here, youtube, and the internet in general and found the "L" type grid to define the pattern (the 1-3 pixles down the side and across the bottom). Still no result worth keeping.

Thanks for the suggestion, but I'm sure I'm not the only one that's run into this problem.

Thanks for the help, G