High Resolution Sprite Sheets

Hi

I roughly finished my first app using the corona SDK. Currently I am having difficulties with using high resolution Sprite Sheets. My app works Ok on the simulator and a device when I am using standard 320 X 480 but when I use retina, there I have some problems. The @2x sprite sheet displays well but my problem is the physics boundaries are twice the size of the image.

Here is my code for one of my character creation

[code]
local function createDog (pram1, pram2)
local dogX = pram1
local dogY = pram2

if displayScale < 1 then
dogSheet = sprite.newSpriteSheet (“alienA@2x.png”,104,104)
else
dogSheet = sprite.newSpriteSheet (“alienA.png”,52,52)
end

dogSet = sprite.newSpriteSet (dogSheet,1,4)
sprite.add (dogSet, “dog”, 1,4,500,1)
dog = sprite.newSprite (dogSet)
if displayScale <1 then
dog.xScale = .5; dog.yScale = .5
end
dog.x =dogX; dog.y = dogY
dog.isDog = “doggy”
physics.addBody (dog,“static”,{density = 0, bounce = 0, friction = 0})
localGroup:insert (dog)

return dog

end

[code]

Hope somebody can help me because at the moment my only option is to publish my app without using high resolution sprites for retina devices.
[import]uid: 147050 topic_id: 30624 reply_id: 330624[/import]

anyone? [import]uid: 147050 topic_id: 30624 reply_id: 122861[/import]

anyone? [import]uid: 147050 topic_id: 30624 reply_id: 122861[/import]