Rainbow Cube Problems

I have finalyl managed to solder my rainbowcube but I must have made some mistake somewhere. The problem is that I have no clue where to search.
When I use the Cube 2 Code which is delivered

[code]/*
Rainbowduino v3.0 Library examples: Cube2

Sets pixels on 3D plane (4x4x4 cube)
*/

#include <Rainbowduino.h>

void setup()
{
Rb.init(); //initialize Rainbowduino driver
}

unsigned int z,x,y;

void loop()
{
for(x=0;x<4;x++)
{
for(y=0;y<4;y++)
{
//Paint layer 0 Green
Rb.setPixelZXY(1,x,y,0x00FF00); //uses 24bit RGB color Code
}
}

for(x=0;x<4;x++)
{
for(y=0;y<4;y++)
{
//Paint layer 3 Blue
Rb.setPixelZXY(3,x,y,0x0000FF); //uses 24bit RGB color Code
}
}
}
[/code]

I get the following resultLevel 1 and 3.jpg
The front is SB4 and SA1

When I use the orginal code of cube 2 The Result is the following.
Level 0 and 3.jpg

I checked the soldering points and they seem to be ok. If anybody has a good idea on how this could be fixed I would be more than grateful !

Many thanks !!

Carsten