While visiting Crystal Falls library we discovered that on several machines we could not log into Yahoo mail. While struggling to find an answer a patron (Gary) suggested that if you go in and change a setting within IE it will work again. I would like to thank him for the suggestion. Here is what you have to do.
First make sure you thaw Deep Freeze or Remove the public user from the container so you can access the Tools within Internet Explorer.
Login as the public user All/Public/etc.
Right click on Internet Explorer
Go to Properties (left click)
Click on the advance tab
Scroll down until you find the following: Use HTTP 1.1.
Make sure there is a check in this box.
Now you should be able to log in to Yahoo mail.
Don't forget to put the user back in the container or freeze the machine using Deep Freeze