livid cntrl r ableton 9

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Hi,

I find myself incapable of using my cntrl r controller anymore. It was working fine until I had to re-install ableton Live (legal copy). Now with any mapping file provided on the site or the wiki, the cntrl r  just won't appear on the list of midi controllers available. Every other controller seems to be present in the list except for this one.

I would be really greatful if someone had a similar issue, or a fix to this problem.

Thanks in advance !