In Excel 2000, an inadvertant twitch of the hand struck some key
combination that turned off the "Show Windows in Task-bar" feature of
the Tools>Options>view menu.
What keystroke would this have been? There seems to be no listing for
this in the Help, nor can I find it in various "undocumented
short-cut" sites found with Google.
In general, how does one go about finding out about undocumented
short-cuts in programs like Excel? Are they more or less just Easter
Eggs, known only to the cogniscenti?