I thought I would be able to open my box and begain using my MH871, although I'm having trouble finding the settings on Sign Blazer for the the MH871. I see settings for the 721 and 1351 but not the one I need. Is it some kind of conspiracy to buy more software to use the product? or can I make the product work with what I've currently purchased. is there another links I should be looking for in the promo cd that came with the unit, I was able to intstall the program onto the computer Please walk me through the set-up you'll have used that works with the Sign Blazer promo disk.