Well. I took it back this eve. (Yes it bugged me each time MK started ) They were cool. They were even cool when I asked them if I could charge the new one a little and test it before I left. I brought my MK game just to test a full black screen. The cashier was very friendly as was I. She didn't mind letting the replacement charge as I didn't mind her attending others at customer service as well, whatever it was they needed doing lol. Now I have my most excellent DS with no bad pixlels. I bought Trauma Center at an Eb on the way home. Wohoo, the first new (well, a year old) gen system I have bought in years. Thanks all.
V