My parents are having a problem with opening their emails. When they click on an email in their inbox, it doesn't open. Down at the bottom left under the "Messenger" tab, it says "loading....". No matter how many times you click on an email it always says it's loading. It never opens no matter how long you wait. I've tried logging out and logging in and changing the internet settings and restarting the computer, but NOTHING WORKS. I restored the computer to fix it. After that, it was working fine for a few weeks. Then the exact same problem came back!
Why does this keep happening?