I tried to use Alt as meta key for the FSF Emacs 23 Windows version and for EmacsW32 but especially M-x (Alt-x) does not work.
Somehow I cannot use Alt as Meta key for Alt-x (M-x). I searched really hard and all I got is how to switch the meta key to Alt in w32-meta-style. Currently this variable has the value 'use Alt as Meta key'. I also tried all other values with no success. Furthermore I installed the unpatched version of emacs from http://ourcomments.org/Emacs/EmacsW32.html and the original binaries from gnu.org. All versions have the same problem.
Alt works as Meta, except for Alt-x (Meta-x).
My setup is as follows:
- Windows 7 x64 Professional
- German keyboard
This question is Windows specific as I have a working Ubuntu version of Emacs 23.
EDIT: It was Growl for Windows. It loads on start up and caputes all Alt-x inputs. So my solution was to just disable Growl as I do not need it anymore. Might be another App for you.