Display difference between emulator and device

Hi, people.

I have a weird problem that is driving me nuts for a full week now.. Maybe someone has been through this before, so I´ll explain my problem shortly.

I´m working on an app for mobile devices, using the Flex 4.6 SDK. These are my xml settings:

  <aspectRatio>landscape</aspectRatio>

  <autoOrients>true</autoOrients>

  <fullScreen>true</fullScreen>

  <renderMode>gpu</renderMode>

The app is working perfect on the device, but when running in the ADL emulator, every single object appears to have a bottom gap, because they all appear upper than they should. The strange fact is that when I click in the area where the objects should be, they respond perfectly, as they really are where they must be. It´s only that they show at the wrong place.

I attach an screenshot to ilustrate the problem.

As you can see, the weird area is covered with some kind of stretched version of the image.. I don´t know even how to explain it.

NOTE: After reading something in this forum, I had just made a quick test, turning GPU mode to CPU, and everything is displayed well at the emulator.... But I really need it to be in GPU. Anyone knows anything about this problem with GPU settings?

Thanks in advance.