hfss extract

A colleague of mine needs to extract the surface current data from descreet grid on a rectangular microstrippatch. He has done this ok using the field calculator in HFSS v.8.5 but the resulting plots look very wrong! This apparently is a known problem in 8.5. Does anybody either know of a succesful work around or how to do this in v.9

TIA
Barry.

In v8.5,I also extract the surface current,but no larger errors can be found! Maybe you have some errors in other!

Hi,
Why do you want to extract surface current? What information does the surface current gives us? sorry if i sound stupid here.

thks,
floggie