Oops! What was that...?

These two almost simultaneous dialog boxes, one with absolutely no information, and the other with a runtime error message, showed up while I was trying to open Internet Explorer 9 beta and then, or was it before?, when I tried to use the Snipping Tool, I don't recall exactly in what order. I assume that, since I'm using a beta version of IE this programming error ("calling a pure virtual function", read more here) just had to show up, but the other dialog box is really a puzzle. On the other hand, the green color has nothing to do with this technical anecdote. It is just the background color I always choose, instead of white, when I'm typing long documents. This happened in the last week of 2010.