How to restore emulator UI to default settings?

There should be a bunch of buttons on dark gray background right of the phone screen. I started playing with the keyboard shortcuts available in that window and I must have done something 开发者_运维技巧to make the whole right-hand side of the emulator window disappear. How do I restore it?

This may be of help: http://www.android.encke.net/android-emulator-tutorial.html - Ctrl-F11/F12 may get you back in order.