Shizzlemah,
When using the Centroid control it is not necessary to use the M102 command. Simply set "Job Repeat" to "ON" and specify the number of parts you wish to make. The control will automatically repeat the job w/out prompt until the number of parts is reached. The M102 is causing the program to never actually end, therefore it cannot be repeated to your specified number and it ends up in a continous loop.
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)