The advantage of working inside the Windows engineering group is you stumble upon some cool or weird new and old features you never knew about.
One of this nuggets is the keyboard shortcut Windows+Ctrl+Shift+B. So what does it do? It resets the graphics subsystem on your machine (and makes your machine say Beep!).
Apparently this was introduced in the Vista timeframe where we introduced the new Desktop Windows Manager (DWM) in Vista.
Also makes you wonder what other shortcuts are hidden in Windows