problems posting in MasterCAM X4

[polo]

I have been using CAM/BAM and Mach3 to do some basic toolpaths with no problem. I recently attempted to do some surfacing toolpaths with MasterCAM and at the end of the operation the tool went down in -z axis maybe 3 inches into our table and jogged in a negative-y and positive-x directions before I could hit the e-stop. I will attach the g-code .nc file, and I appreciate if you can help figure out what I am doing wrong...
 
I believe it is a post processor error . I just posted g-code as generic and ran the program ... everything ran fine until the end

[Graham Waterworth]

The code looks fine, if you remove the G91 G28 Z0 & G28 X0 Y0 A0 lines that will stop it going to machine reference at the end but there is nothing in the code to make it dive into the table.

Graham