I've downloaded the Mids Hero Designer, but when I try to open it, the window flashes open and closed very rapidly. It's like the screen is flashing, it does this so quickly I can't close the window, I can't even get the computer to reboot. I have to shut off the power to stop it. I have saved the program and tried to open it, I have tried to download and run it, the same thing each time. I am running Vista Home Premium, I haven't had this problem on download before. Can you help me out? What should I do?