error Avalon Edge detector DSP Builder example

I've just finished installing DSP builder 8.0, I've load the follow file:

c:\altera\80\quartus\dsp_builder\design_examples\tutorials\SOPCBuilder\AvalonFIFO

as you can see after simulation, the pic resultant (border detector) is 10pixels moved to the right, this is a problem because it can't be correlated with the original pic.

I have seen the same error in the picture of this example in DSP Builder 7.2