I've been having a weird issue lately. It has only happened with my Yahoo email (I have Yahoo, Verizon, gmail and a work exchange email all coming in). Anyway, I'll open an email and start reading, after a few seconds, the email body will just go blank. I can exit out of the email and come back and it's still gone. I can read it from my laptop, bit from the thunderbolt, it's a blank email. It's starting to get on my nerves.