This started happening just recently, maybe an hour ago.
As soon as I post an answer or a peer comment, the page loads up with the upper and leftside panels (all the buttons, links and ads show up okay), but the rest of the page is blank. The contents that are usually there are not there now.
Yes, happens also with me. I had thought it was my own problem, but now, after SirReal's post I see it was ProZ'. To give an answer/peer comment I have to click "Back" in my IE than tru again (on the second try it works fine).