We've been pumping for almost a year now, and just recently started having issues with the PDM. First, we couldn't turn it on sometimes without taking out the batteries and replacing them. Then yesterday, when my daughter turned on the PDM, all the color was gone. The screen is very faded, text is grey instead of black, and there are grey lines going across. It looks like a newspaper that's been smudged. We can see the BG, but the commands at the bottom are almost impossible to read. We're getting a replacement today, and the explanation I was given was that some series of the PDM don't like to be turned on with the test strip. So for those of us who are used to putting the test strip in first, I guess we should get in the habit of turning the PDM on with the button first.