wine users - Jul 2010 - Amazon Trail II, game window won't grab focus

I'm trying to run Amazon Trail II, an old MECC game.

It installs fine and seems to load okay, however the game window within the main
wine window is greyed out and the mouse and keyboard can't seem to get
focus. The sound still works and no error messages are reported on the console.

Any help would be greatly appreciated!

For info: I'm running Linux Mint 9 (~Ubuntu 9.10) and Wine 1.2r6.

Cheers,

Ben