version: Mathematica 10 OS: Windows 7, 64-bit
After I create a simple plot, Mathematica puts a click-able menu at the bottom with things like "theme ..", "labels ..", "axes", "image size" etc.
If I then click "labels ..", Mathematica stops working. Windows says that the program is not responding. Task Manager shows that CPU usage is maxed by the process Mathematica.exe. It never recovers. I have waited as long as 10 minutes, but the Mathematica window remains faded out and not responsive. Moving the cursor over it simply turns it into the hourglass/circle working cursor. The only option is to use Task Manager to close Mathematica and restart it.
This problem is repeatable. I have tried several times and got the exact same result.
Does anyone know why this might be happening?