i bought wow at a local store, put in the cd, installed everything + patches. opened the world of warcraft shortcut and clicked "play" in the world of warcraft window and then my screen goes black like its about to run WoW, but nothing happens. ive been forced to manually press the power button to shut down my mac. i've even went to the blizzard site or "battle.net" and put in the authentication code thinking that was my issue. but nothing happens still. ive never had wow, so i dont know if i need to setup a PAYMENT subscription 1st before playing, but isnt the 1st month free? i dont think this is the issue either tho. i dont see any WoW intro, or anything. please can anyone help me. thanks.