User blog comment:Dopp/Technical Update: July 26, 2011/@comment-4993782-20110728183908/@comment-126761-20110728201524

It should have been fixed earlier today - please try refreshing the page and see if it continues. (If it is the same issue, it occured when the right rail is closed, and covers the right 2/3 of the edit area).

On adding pictures, what kind of issue are you specifically seeing? You can't open the dialog, or it doesn't insert the wikitext, or...?