Many non-market apps will download, but when I go to install them (or after it looks as though they have auto installed), the "install" button is greyed out and it isn't listed among my installed apps. My software is up to date, and I am set to allow non-market apps. I would not be as concerned except this is a replacement phone and I know for a fact that the same apps installed fine on my last (identical) phone. Thanks to anyone who can assist! Joshua L.