Whilst working on a current project I was trying to get cross-browser compatability working nicely. However when I came to load up IE’s Developer Tools I found it was loading up the window but nothing was there! I’m running Windows 7 and this seems to be the only version of windows the problem is affecting:
The solution I found is actually very simple, right click on that hidden window thumbnail and click maximise. If that fails then you could always try a solution outlined on StackOverflow. The best solutions are often the most simple!!