Export Surface to .csv file ?

I set up the plot for the surface:
z=sin(x)/2*y

This plots nicely, but upon export to .csv (spreadsheet output), the .csv file is empty except for the axis labels (x y z).

Hi Steve,
Indeed we are aware of this problem and will have a fix for it with the next release. I will let you know when it's becomes available. Hopefully within 2 months.

This problem has been fix in the latest version of our 3d graphing calculator.