Menu Touch Key no reaction

[SGS2Andro]

Hello ...

I have a problem with my SGS 2.
The problem is if I press the Menu Touch key nothing happens.

The problem is since the version 2.3.
I've installed yesterday ICS with the same result.
But if I press the back Touch Key the Menu TouchKey lights on.

So.. I hope anybody can help me.
Thank you for your help.

[greenman]

When you install ics, remnants of gingerbread will come along unless you carry out a factory reset and clear cache from the Recovery menu. Sounds like you brought something that was, and still is,affecting your Menu key.
Try a factory reset and clear cache now.

[SGS2Andro]

Thanks for you Answer..
But how can i clean the cacke from the Recovery menu ?