no more sound after a mac os x restart? Fixed

Ufff.... that what happened to me just some minutes ago: after a restart of my MacBook white, due to an overload (the system started to respond very slow, I had too many apps opened and it was many days I didn't shut it down)..... I had no more soud!!!
Remembering the old days, when I was used to spend hours in fixing Windows problems with drivers, corrupted updates and so on..... I was already prepared to do it...
But actually it was very easy fix!! And it was not due to Mac Os X itself, but to Soundflower application which I have installed on my system!!
Eh eh!! Mac...the more I discover you, the more and more I love you!! :-P

Problem:
No more audio after a restart of Mac Os X 10.6 Snow Leopard (mine is 10.6.4 version)

Solution:
If you have Soundflower installed, that may be the cause.

Soundflower is a software to redirect the output sound from the system or from an application to another application, where it's used as input source. It's a very nice piece of software indeed!
Usually I keep it off, but for some unknown (to me) reasons, after that restart the sound output
was not set anymore to the "Internal Speakers" (as the normal default), but to "Soundflower 2Ch". Changing back to "Internal Speakers" fixed the problem!! :-)
To check and fix it:

Go to "System Preferences" (from the Dock, or from the Apple Icon menu on the top bar), then go to "Sound", then go to the "output" tab; there you can see the option "Select a device for sound output" where, if you have Soundflower installed,you can select between:
Internal Speakers
Soundflower (2ch)
Soundflower (16ch)

In my case, after the restart, the output was strangely set to "Soundflower (2ch)", and setting back to"insternal Speakers" fixed the problem.

Have a nice summer day! :-)