Exactly which version are you using?
Where did the post come from (did you write it)?
What type of toolpath are you using?
Most of the time when people want the poat changed because of bad toolpath, it's because they have a setting wring in Mastercam. The curse/blessing of Mastercam is that it's highly configurable. It's easy to miss a setting that might tell it to "stay down" or possibly your retract for a particular cust is not high enough. Something like that. Then you get a cut thru the part.
I think it was V9.1, on it's initial release, had a bug that caised it NOT to retract.
Mike Mattera
Tips For Manufacturing Training CD's, DVD's for Mastercam, SolidWorks, Inventor, G-Code Training & More
http://www.tipsforcadcam.com