For just the last month I have been receiving e-mails from certain yahoo and g-mail accounts, but there is nothing but a blank screen. I cannot read the message. I have to log onto my pc to read the e-mail. I went to verizon store and the employee told me to download the yahoo mail app since that is my e-mail provider. I researched this and there seems to be a lot of bugs. Once again, everything was working fine up until last month. What should I do??