Your paintball shop sucks if they cannot figure out how to turn up the HPR and LPR... Just saying.
Do you have a picture of the gun? Or a description of any aftermarket parts on the marker?
Also we need to establish the year of your marker. Since you have PDS i assume you have a 2003-2004, should look something like this (my B2k4)
Ill help you further once you get back.