Within the last day, in Internet Explorer 8, the developer tools window will not show up.
When I hit F12 or use menu Tools -> Developer Tools I get the Developer Tools entry in the Task Bar but the actual window will not show up.
It has been running fine for a month or so. I have tried rebooting with no luck.
If you are on Windows 7, Windows Key + Up Arrow Key will maximize the window.
I had the same problem. Regretfully, the Alt-Space briefly gave me the move arrows, but I was unable to move the window. Alt-Space did give me the menu box, and I was able to maximize the window and then see it. Thanks for your help!
Deleting some registry keys worked for me. Try running this in a prompt
reg delete "hkcu\software\microsoft\internet explorer\iedevtools" /v windowpos
I had same problem on Windows 7 when I went back to single monitor setup after having a dual monitor setup.
Use the Windows 7 keyboard shortcut for moving windows around the screen. You may need to repeat the same combination twice.
Windows Key + Left Arrow
or
Windows Key + Right Arrow
Rather than deleting the IEDevTools registry key, I modified the Disabled property to 0. For some reason the install left it with a value of 1, which means that the dev tools are disabled.