Unluckily it was found totally unable to enter the game properly after implementation of last security update for 10.4.11 Tiger that was issued in October 2008 (sorry missing the certain date but last 1 before Oct. 24). I do realize that this OS is no longer in focus of Apple however I'd like to hope it still in use for most of Macusers and it probably should be interesting for wise CrossOverGames developers. Please mind how to figure this bug out: game just sticked up with 'Verifying Account' when running client and bypass this operation. Thanks in advance!