I ve got Win 8 64 bit, I installed it again, also tried 32 bit…but Im always gettings the same warning message :
“Okt 04, 2014 12:08:43 PM java.util.prefs.WindowsPreferences <init>
Warnung: Could not open/create prefs root node Software\JavaSoft\Prefs at root 0x80000002. Windows RegCreateKeyEx(…) returned error code 5.”
I dont know what to do, please help me guys.
Do you often run things “as admin” on a normal user account? Looks like you either have a user rights issue or a broken registry.
first of all thank you for replying fast,
now I started JME3 as an admin, now the problem seems to be fixed, but after compiling I dont get what I coded, just see a box/cube, and now I get a new warning message 
“Cannot find loader com.jme3.scene.plugins.blender.BlenderModelLoader”
I installed blender, and I also installed “Blender Ogre XML”,
Im desperated 
Its really not a good idea running stuff as admin all the time, you’re prone to get issues with that and if you do that often your system is probably messed up in so many ways by now that its hard to trace any issue you’re experiencing.
Anyway, the blender loader isn’t included in a projects libraries by default because its not platform independent. You can import blend files as j3o and load those (recommended!) or add the loader to the library set but give up platform independence. The default main class can be configured in the application settings too, in case you made a new main Application class. If you did the SDK will still run the premade main class with the blue cube, I suggest simply changing that though instead of making a new one.
Im a newbie in JME, dont know what you excactly mean.
how can I import them? where do I get these files?
Now it compiles and I dont get any warning message, aprt from that I also imported the blender lib.
I took the code from the tutorials here from the page, and compiled them, but no matter what code I compile, I just get a cube as a result.
It doesnt make what I coded.
After I close that window, Im recieving these messages, maybe It will help you to understand my Problem.
Okt 04, 2014 1:05:40 PM com.jme3.system.JmeDesktopSystem initialize
Information: Running on jMonkeyEngine 3.0.10
Okt 04, 2014 1:05:40 PM com.jme3.system.Natives extractNativeLibs
Information: Extraction Directory: C:\Users\Ayhan1903\Documents\HellWorldTutorial
Okt 04, 2014 1:05:40 PM com.jme3.system.lwjgl.LwjglContext printContextInitInfo
Information: Lwjgl 2.9.0 context running on thread LWJGL Renderer Thread
Okt 04, 2014 1:05:40 PM com.jme3.system.lwjgl.LwjglContext printContextInitInfo
Information: Adapter: aticfx64
Okt 04, 2014 1:05:40 PM com.jme3.system.lwjgl.LwjglContext printContextInitInfo
Information: Driver Version: 8.17.10.1280
Okt 04, 2014 1:05:40 PM com.jme3.system.lwjgl.LwjglContext printContextInitInfo
Information: Vendor: ATI Technologies Inc.
Okt 04, 2014 1:05:40 PM com.jme3.system.lwjgl.LwjglContext printContextInitInfo
Information: OpenGL Version: 4.4.12874 Compatibility Profile Context 14.100.0.0
Okt 04, 2014 1:05:40 PM com.jme3.system.lwjgl.LwjglContext printContextInitInfo
Information: Renderer: AMD Radeon R9 200 Series
Okt 04, 2014 1:05:40 PM com.jme3.system.lwjgl.LwjglContext printContextInitInfo
Information: GLSL Ver: 4.30
Okt 04, 2014 1:05:40 PM com.jme3.audio.lwjgl.LwjglAudioRenderer initInThread
Information: Audio Device: OpenAL Soft
Okt 04, 2014 1:05:40 PM com.jme3.audio.lwjgl.LwjglAudioRenderer initInThread
Information: Audio Vendor: OpenAL Community
Okt 04, 2014 1:05:40 PM com.jme3.audio.lwjgl.LwjglAudioRenderer initInThread
Information: Audio Renderer: OpenAL Soft
Okt 04, 2014 1:05:40 PM com.jme3.audio.lwjgl.LwjglAudioRenderer initInThread
Information: Audio Version: 1.1 ALSOFT 1.15.1
Okt 04, 2014 1:05:40 PM com.jme3.audio.lwjgl.LwjglAudioRenderer initInThread
Information: AudioRenderer supports 64 channels
Okt 04, 2014 1:05:40 PM com.jme3.audio.lwjgl.LwjglAudioRenderer initInThread
Information: Audio effect extension version: 1.0
Okt 04, 2014 1:05:40 PM com.jme3.audio.lwjgl.LwjglAudioRenderer initInThread
Information: Audio max auxilary sends: 4
@normen said: The default main class can be configured in the application settings too, in case you made a new main Application class. If you did the SDK will still run the premade main class with the blue cube, I suggest simply changing that though instead of making a new one.