Post Editor Toolbar missing

My problem: My post editor toolbar is missing completely. I still have the “Upload/Insert” toolbar showing. I am able to type in a title for the post, but when I click on the body of the post, I am unable to do any typing.

What I have tried (based on other threads I read on this topic): I have tried using two different browsers (Firefox and then Explorer) and the problem exists in each. I also tried resetting the cache in each one. I also looked at my personal settings and the “disable visual editor” bos is UNchecked.

I use wordpress regularly but I am not the best with technical details or HTML code, so anything you can suggest in plain English that a newbie could understand is most appreciated.

Thank you in advance for your help. I appreciate it.