[pinnochio]

You absolutely did, but are you not aware that cmd+` allows you to switch between windows?

[dijit]

only with the same application, and on the same virtual desktop (which is what i said).

i am confused here now, what do you mean that i am missing?

[frizlab]

What you are thinking about is provided by a third-party app (AltTab). It was never a part of the system.