First when I click on and enter text in the wall post "What's Happening" and then hit Send the text appears to disappear. I then reenter the text and again hit Send and the same thing happens. It isn't until I refresh the page in the browser that I can see that anything has posted. I then end up with duplicate posts. Any ideas on what is going on or how I can fix this?

Also when I hover over the duplicate post I get the Delete button, clicking on that brings up the confirmation window/box where I click OK but and the post disappears but reappears when I refresh the page in the web browser. Again any ideas?

Thanks for your help!