Hi For Some reason I am having problems with MatrixPlot .

I am using matrixPlot to plot matrices using 1 and 2's , in the {8,22) , {32,9}, {87,10}, {176 ,11) dimensions range ..

The Plot works fine but when I get to the {11,76} dimension it corrupts {instead of using 2 colours it is using 3, even though the matrix is still in 1's and 2's. I attach a notebook to illistate the difference between the MatrixPlot of dimensions {87,10}, and {176 ,11)

The Output for MatrixPlot's of {32,9}, {87,10}, {176 ,11)