iphone simulator 960x640 how to use open

I would like to start the simulator is
960x640 screen
You can find the next network said in AppDelegate uncommented, if ([director enableRetinaDisplay: YES]!)
CCLOG (@ "Retina Display Not supported");

But I found that my generation did not file this line of code, how to call to this method, I use xcode4.2
Reply:
This is cocos2d code. . .
Reply:
Point simulator - the "hardware -" Device - "iphone (retina)
Reply:

cited a floor reply:

This is cocos2d code. . .

I changed how good? ? ? Neighborhoods Yeah, thank you
Reply:

reference to the second floor of the reply:

point simulator - the "hardware -" Device - "iphone (retina)

My first step is so changed, but not? ? ? Resolution has not changed, just pull the big screen. You are setting this on the list? ? ? Yeah exhibitions
Reply:
If you say
cocos2d words that you said that part of the code commented out, if you do not have that code appdelegate file, then you may be an older version of cocos2d, replaced by the latest version can be found
Reply:
Point simulator - the "hardware -" Device - "iphone (retina), this is to change the resolution.