Heres the error file:

Uncaught exception from thread:Thread[LWJGL Renderer Thread,5,main]
com.jme3.renderer.RendererException: Shader link failure, shader:Shader[language=GLSL100, numSources=2, numUniforms=20, shaderSources=[ShaderSource[name=MatDefs/MyLighting.vert, defines, type=Vertex], ShaderSource[name=MatDefs/MyLighting.frag, defines, type=Fragment]]] info:Fragment shader(s) failed to link,  vertex shader(s) linked.
 
   at com.jme3.renderer.lwjgl.LwjglRenderer.updateShaderData(LwjglRenderer.java:1087)
   at com.jme3.renderer.lwjgl.LwjglRenderer.setShader(LwjglRenderer.java:1122)
   at com.jme3.material.Material.renderMultipassLighting(Material.java:799)
   at com.jme3.material.Material.render(Material.java:1028)
   at com.jme3.renderer.RenderManager.renderGeometry(RenderManager.java:658)
   at com.jme3.renderer.queue.RenderQueue.renderGeometryList(RenderQueue.java:299)
   at com.jme3.renderer.queue.RenderQueue.renderQueue(RenderQueue.java:351)
   at com.jme3.renderer.RenderManager.renderViewPortQueues(RenderManager.java:894)
   at com.jme3.renderer.RenderManager.flushQueue(RenderManager.java:850)
   at com.jme3.renderer.RenderManager.renderViewPort(RenderManager.java:1130)
   at com.jme3.renderer.RenderManager.render(RenderManager.java:1173)
   at com.jme3.app.SimpleApplication.update(SimpleApplication.java:254)
   at com.jme3.system.lwjgl.LwjglAbstractDisplay.runLoop(LwjglAbstractDisplay.java:149)
   at com.jme3.system.lwjgl.LwjglDisplay.runLoop(LwjglDisplay.java:182)
   at com.jme3.system.lwjgl.LwjglAbstractDisplay.run(LwjglAbstractDisplay.java:223)
   at java.lang.Thread.run(Unknown Source)

Build version:20120627

Memory usage:
Working memory: 74% (67636552/91033600)  VM Max: 13% (67636552/518979584)

Rendering caps:

plz if u cn help HALP