Problems rendering on a galaxy tab GT-P1000 - android

Hi have a problem running my software on the samsung galaxy tab.
Sometimes (but not always!) areas that are rendered transparent look garbled. I have attached an image showing a screen capture done on the device, which looks perfect for a strange reason, and a photo that shows the garbled half transpaent black box.
Has somebody an explanation for this effect or can somebody point me in a direction - I really don't know where I should start searching since the same software runs flawless on a galaxy s2 and on all IOS devices.
Perhaps somebody here has seen somthing similar and knows reasons that might lead to artifacts like these.
screenshot vs photo http://www.applab.at/img/garbage_samsung_tab7.png

The problem seems to be the device itself.
Sometimes if you turn the device on, you see a garbled screen befoer the samsung logo appears. Then this effect shows whenever running the software.
If the device boots without a garbled screen, everything is fine.

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Why does one of my GenyMotion emulated devices show a black screen?

I have two devices in my GenyMotion application. One is nexus 7 4.2.2 API. The other is a saumsung galaxy s4 4.3 API. The nexus emulator starts up fine and works well. However when I tried starting the s4 emulator, the android loading screen doesn't even show up, all i get is a black screen. When I go to DDMS, the devices tab tells me that the samsung galaxy s4 is online and debuggable. Does anyone know how to fix this issue? It make more sense if both show a black screen but why does one show a black screen and the other doesn't. I don't see anything out of the ordinary in the console.
I just tested this, and notice the blank screen is due to Genymotion version mismatch. Once i downloaded the latest genymotion (v2.3.0) , i was able to see Galaxy S4 startup properly.
If you do not see the navigation bar, you can manually enable it in Configure virtual device, see below.
this worked for me : In Configure Virtual Device (as shown in ashoke's answer) I changed Screen size to one of predefineds resolutions.

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http://i.stack.imgur.com/rxPFO.png
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I have an OpenGL ES 2 app running on Android. I have tested on a few devices:
Samsung Galaxy S2
LG Optimus G
HTC One X
Kindle Fire
Kindle Fire HD
And the app runs as expected. However, there is a lingering issue on my Samsung Galaxy S3. In my demo, I render a bunch of spheres. I can also pan the camera around by touching and dragging my finger on the screen.
What I notice is "ghosting" when I move the camera. It's difficult to describe, but I can see the previous outlines of the sphere as I move the camera. And, I can continue to see the previous outlines as the camera moves. I don't see all the previous outlines -- only the last few (it's difficult to quantify things here). And, I only see the outlines within the sphere -- as far as I can tell, the previous outlines cease to exist outside of the sphere.
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I recently had some texturing issues (related to mipmapping) and I solved them the other day. The problem and solution are outlined here:
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Could my texturing fix be related to this? I realize that I'm leaving out A LOT of details, but I'm wondering if the symptoms are enough to go on? Any ideas?
Thanks.
Additional details:
The ghosting does not show up when taking a screenshot using the NDK.
A photo of the problem:
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