A 3D graph that is easily plotted in Mathcad 15, cannot be oppened in Prime 4.0 unless I decrease the number of points. Is it Prime 4.0 graphing power lower than Mathcad 15 yet?

I converted a Mathcad 15 file to Prime 4.0, and one of my 3D graph cannot be plotted in Prime 4.0, the message says: "the number of plotted points must be below 40,000".

the only difference between the plot in Mathcad and Prime 4.0 is that, that I converted the one from Mathcad to Prime 4.0

the one in Mathcad 15 looks just fine.

Regards,

Rogelio