how many led's, this screen is big enough where I had to do some voodoo to get it to refresh quick enough, where as a 8x8 or a 16x16 you can just use shift out
I will post in a bit, I have to go to the other room and fire that pc up, but its really just slapped together and I doubt it would do much except confuse you (which is fine cause then we can move onto theory lol)