Shaders iOS, OSX - iphone

Question

I have problem with OpenGL's shaders.
#ifdef GL_ES
precision lowp float;
#endif
varying vec4 v_fragmentColor;
void main()
{
gl_FragColor = v_fragmentColor;
}
and the second one
attribute vec4 a_position;
attribute vec4 a_color;
uniform mat4 u_MVPMatrix;
#ifdef GL_ES
varying lowp vec4 v_fragmentColor;
#else
varying vec4 v_fragmentColor;
#endif
void main()
{
gl_Position = u_MVPMatrix * a_position;
v_fragmentColor = a_color;
}
Firs I make 2d projection
- (void)makeProjection2D
{
float scaleFactor = 1.0;
CGSize size = self.bounds.size;
glViewport(0, 0, size.width, size.height);
kmGLMatrixMode(KM_GL_PROJECTION);
kmGLLoadIdentity();
kmMat4 orthoMatrix;
kmMat4OrthographicProjection(&orthoMatrix, 0, size.width / scaleFactor, 0, size.height / scaleFactor, -size.width, size.width);
kmGLMultMatrix( &orthoMatrix );
kmGLMatrixMode(KM_GL_MODELVIEW);
kmGLLoadIdentity();
}
Next step is shaders creation.
Folowed by OpenGL initialization.
GLint dim[2] = {1025, 769};
CGLSetParameter([[self openGLContext] CGLContextObj], kCGLCPSurfaceBackingSize, dim);
CGLEnable([[self openGLContext] CGLContextObj], kCGLCESurfaceBackingSize);
// Setup OpenGL states
glMatrixMode(GL_PROJECTION);
CGRect frame = self.bounds;
glGetError();
// Setup the view port in Pixels
glOrtho(0, frame.size.width, 0, frame.size.height, -1, 1);
glViewport(0, 0, frame.size.width, frame.size.height);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glEnableClientState(GL_VERTEX_ARRAY);
glClearColor(1.0, 1.0, 1.0, 1.0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
self.pointSize = pointSizeForDrawing;
GLint zeroOpacity = 0;
[[self openGLContext] setValues:&zeroOpacity forParameter:NSOpenGLCPSurfaceOpacity];
If I try to draw domething on the screen like four big pixels
glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER, framebuffer);
glClearColor(1.0, 0.0, 0.0, 1.0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPointSize(100.0);
glColor3b(1.0, 1.0, 1.0);
GLfloat i[8] = {44.0, 44.0, 100.0, 100.0, 300.0, 300.0, 500.0, 500.0};
glVertexPointer(2, GL_FLOAT, 0, i);
glDrawArrays(GL_POINTS, 0, 4);
glBindFramebufferEXT( GL_READ_FRAMEBUFFER_EXT, framebuffer );
glBindFramebufferEXT( GL_DRAW_FRAMEBUFFER_EXT, 0 );
glViewport(0, 0, self.bounds.size.width, self.bounds.size.height);
glBlitFramebufferEXT( 0, 0, self.bounds.size.width, self.bounds.size.height, 0, 0, self.bounds.size.width, self.bounds.size.height, GL_COLOR_BUFFER_BIT, GL_NEAREST );
glSwapAPPLE();
Only one is visible, if I remove making 2d projection and shaders then all 4 are visible.
The code, which uses the shaders works on iOS, but not on OSX, any idea why? To initialize shaders I use CCGLProgram from cocos2d If you need more info, please let me know.