3dsmax ~ fix Missing Command Panel

All of these situations can be quickly fixed by using the following steps.

1. Start 3ds Max Design.
2. From the main menu, choose Customize > Revert To Startup Layout.
   You're warned that all UI settings you've made during the current session of 3ds Max Design will be reset.
3. Click Yes.

The original user interface is restored.

but it doesn't fix this problem......

my solution is go to
C:\Users\Bitty\AppData\Local\Autodesk\3dsmax\2009 - 64bit\


delete folder enu

then the Command Panel appear~~lol

http://docs.autodesk.com/MAXDES/13/ENU/Autodesk%203ds%20Max%20Design%202011%20Help/index.html?url=./files/WSf742dab041063133-34ad690112a1cec1fa-7fed.htm,topicNumber=d0e481375