XCode gives a warning for iPad launch image in landscape

my XCode 4 is giving me a warning about the launch image for iPad landscape mode, which does not fit 1024x748 size. I have checked the image and it is 开发者_运维知识库of this size, what is the problem ?

UPDATE: The issue is solved in iOS 5.

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I have the same problem. I believe it is a bug. Sent a bug report to apple. You are not alone.

EDIT - the new version released yesterday (7/6) fixed that problem

Here is a screenshot from xcode -

No warnings