My gmail wasn't working so I uninstalled it. Upon reinstallation, I was only offered an update so the underlying program must not have truly deleted. Upon reinstall, the program was restored and is functional but the Gmail icon has completely disappeared. It's not on my desktop or app tray. It is visible through settings but I'm not allowed to uninstall, only reverse updates. I'm guessing it was pre-installed on the phone (I can't remember) but the issue remains that the icon has completely disappeared. Any ideas?