where do i find the setting to set an app to always open with a specific app ?
galaxy tab 7.7
OK that's what I was thinking it may be. Anyway, go into Settings > Apps > and depending on whether the one you set originally was a downloaded app or one that came on the device, you go to the appropriate section of apps. Select the app, scroll down and you should see an option to "clear defaults" or something along those lines, select it, and then you should be free to set the new one next time you select to open a file.