I have a stock, unrooted Photon 4G with Go Launcher EX. Since a few days ago, most or all application updates and new app installs in Google Play will fail. They generally download, then hang forever at "Installing..." and the update never completes. Any ideas? I'm using one brand new app that I'd really like to get updates for as it was just released and they're fixing bugs like mad. Plus, I can't install anything new.