I bought a new compact flash reader for putting my agleader monitor info into my computer because my old one would not show up on computer and the light was not on. bought an Atolla from newegg but it wants to format my card that has the files on it. So i put a new sundisk compact flash in to format that and transfer the data through agleader monitor but it says windows unable to format the new compact flash. What am I doing wrong. I hate when 5 minute jobs turn into a massive headache.