i did everything as it says in the post, but i didn't put the game in /home/user/applications, it's located in /home/user but i assume its same thing, and when I tried chown -R user:users /home/user/com.rovio.angrybirdsriohd
it says: such file or directory doesnt exist but when I type without the word (users) then it works. so basically i did everything but the problem isn't resolved..?