I have a Samsung Galaxy Tab 2 10.1 and for some reason the Google Drive app won't open .doc or .docx files that I've uploaded. It'll open .jpeg files and files that I actually created in Google, but when I try to open .doc or .docx files, I can error message that says "can't access document." I uninstalled the app and reinstalled it, but that didn't work. I have no idea how to get help because I don't know if it's the app or the tablet. Any suggestions on how to troubleshoot this?