Posted January 25, 2015
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This is a bit beyond me so a Support ticket will have to do :)
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But I do remember I had the same issue with the Witcher 2... but I don't have Witcher 2 downloaded right now to install. But I remember a member of the community created a zip file with the required packages and I dropped that straight into the Witcher 2 directory. It was the only way I could get it to work on Mint 17 Cinnamon.
If that download is still up, I grab that package and drop into M&B.
sudo apt-get clean && sudo apt-get update
then
sudo apt-get upgrade
I had this edit in an earlier post so I am posting it in case you missed it :)