Ableton Forum

I'm desperately trying to open the max editor window by clicking on the small icon in the title bar of the live device.
The button 'spins' for a while, then it stops, but no editor opens.
All of a sudden it stopped to work, although I saw it working before.

In order to test M4L I'm using the Demo of 8.1.1 Suite with Max 5.1.2 and not my authorized 8.1 version.

I hesitate to buy M4L until I'm certain it will be running correctly on my system.

Any help will be appreciated.

I had sort of the same thing, from a previous post:

When I try to edit a Max midi device by pressing the edit button in Live 8.1.1, Max loads and then hangs without opening the presentation.
If I try the same with an audio device everything works fine.

When I inadvertently killed the Live process, instead of Max, I noticed a midi related error in the Max window behind it:
midi_dm: error 88781131 activating port Microsoft Synthesizer.

I then disabled Microsoft synthesizer and Microsoft GS wavetable synth from the Max midi setup preferences and I was then able to edit midi devices.
It seems Max preferences have other midi devices enabled than those that are set in Live's preferences.

Since I had no other idea, I renamed the whole preferences folder. It looks like it was re-created by Max during the next start.
I could not find any midi-preferences files. Still does not work. Then I copied the [email protected] files from the backup into the preferences directory and deleted the Microsoft GS entry. Still no editor...

On a second computerI with a similar config everything works fine.

I suspect it might be related to the former installation of the Live 8.1 beta version. But I don't know.

I meant the midi setup in the max window.
Try to kill the live process with your taskmanager and perhaps you'll see the max window appear.

Finally I found the solution: Buying a license!

Since I could not get the editor running on my laptop, I called the Ableton support. They told me, there currently is no demo of M4L and wondered how comes, I could get it running on a different PC.
So I took the risk of buying a license without testing and everything works fine now.
BTW: the Ableton support was very helpful and friendly