HelloWorld project crash when enabled retina display and running it in Instrument

cocos2d-x C++
#1

I create a new HelloWorld preoject, press comman + i, it runs very well in Instrument.
Then I umcommont the line pDirector->enableRetinaDisplay(true), it also runs well in simulator.
But press comman + i to run it in Instrument this time, the app will crash and the simulator return to the main screen.
I try many time, it acts the same.Anyone can give me some advise?
My cocos2d version is 2.0

Thank you!

#2

Maybe I finded the reason, I added a image with the Suffix "hd" to the project, then it runs well.
In cocos2d 0.9 , we can use only one image in both retina and normal mode by adding follow code.
@
if ){
pDirector>setContentScaleFactor(2.0);
}
@
But in 2.0, it doesn’t works. Is it a BUG?
The problem only happen while running in Instrument, I didn’t have the IDP yet, so I can’t test it in device.