I need to be root to launch game in Wine

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http://www.linuxforums.org – I have dual-boot Windows XP and Ubuntu partitions. I have a game that I played in Windows. Previously, I could also play this game in Ubuntu. I simply highlighted the game in Nautilus, and opened the game in Wine. After a re-install, followed by the recovery of some files, the game cannot now be launched in Nautilus. I need to open gnome-commander as root, then launch the game. The permissions for the game are r-x r-x r-x. I don't know what they were before the recovery. In order to launch the game as non-root, do I need to alter the Wine permissions? . (HowTos)