I don't know if it was the dpi or not, but if you read to the end, my problem went away and I didn't have to reinstall or clean istall. Once I could get the registration box out of the way, the program ran fine. I didn't have to turn off the antivirus, either. It seemed to be a problem with the formatting of the box and the information in it, so I thought maybe a graphics problem because of the screen fonts being larger. If that does work for someone, it is a whole lot easier than a reinstall and it worked for me. By the way, do you have to register the software at some point to run it? When I opened it while not connected to the internet, it just said to register the next time I was connected and then opened the program. If I had decided not to register later, would it stop working at some point, or is it optional to register?