You must be logged in Pamela. Once you are signed in a message will appear under your log in block, top right. You can also click on your name and you will see " messages " down the left side, click on that. You should also get a " Email " informing you of a PM. I think for memory you can can set that to happen in settings.

I use a iPad most of the time and all seems to work, so see why not on any tablet like devise.

Hope that helps.