I'm a big fan of Law & Order so several months ago I bought the PC version of Law & Order Legacies direct from the Telltale website. I recently bought a brand-new home computer switching from a PC laptop to an Apple iMac computer. I was pleased to discover I could download the Mac version of the game from the “my game” section of the Telltale website at no extra charge (which is very generous thank you Telltale) however I'm unable to run the game on my machine. It's a brand-new iMac and I recently upgraded it to OS Mavericks, however every time I try to install it I see the following message "“Law And Order” can’t be opened because it is from an unidentified developer. “Law And Order” is on the disk image “LawAndOrder100_Setup.dmg”. Google Chrome downloaded this disk image yesterday at 15:18 from cdn.telltalegames.com." Is there any way I can still install the game or is it not compatible with this version of iMac? If anyone has any advice I'd be very grateful.