Hello, am new here and not very technically versed in computer lingo so please be gentle. I have a Powershot A630 and have installed CHDK by using the update firmware. I cannot create a badpixel bin and not able to see DNG on my computer not even in Lightroom 4. When I try to start a script by half pressing the shutter I get message saying something about Lua not being found. I am trying CHDK in order to shoot Raw and catch lightning strikes. Any help will be appreciated, thanks.