I am facing difficulty installing arduino mega adk R3 driver on windows 7. I am using the most recent arduino software. Driver always fail to install. Windows always gives me a message that driver file is missing. While file is there in the driver folder. I have pointed windows to that file but still it fails to install the driver in windows 7. I tried this on my windows XP computer and got correct driver installed first time without any issue. Why windows 7 fail to install the driver? Any suggestion and solution for me please. Thanks