Editor Window Disappears

So I login to my wordpress dashboard, make an edit to a page, click “Update Page,” go look at the page in the browser, and my update is there…everything seems to be working fine. However, after several times of doing this, my editor just disappears, and when I click the “Edit” link for that page, the only thing that gets displayed is the “Edit Page” header and the “Publish” and “Attribute” boxes on the right, my editor just completely disappears. When a page gets to this situation and I click the “Update Page” button, it simply publishes up a blank page and wipes out all revision history. This is very annoying. Has anybody else had this happen before, and know of any solutions?