hello everyone, i have a problem about programming gm338 motorola rig...i have a RIB and its type is RPC-M5X-U (produced by maxtron) and i have CPS R06.12.05 AZ installed on win xp....when i tried to read the rig using software i mentioned before, it said "Couldn't open port. Check whether Device/RIB are powered on or not, and the Device to RIB, and the RIB to PC connection is OK"...i already checked its connection on the rig and my computer several times and it was connected properly and i also checked other problems related to it but until now but unfortunately i am still unable to figure out what is going on....i think my suspicion about why the error shows up is between the RIB that is incompatible with gm338 rig or the software that is out of date...can you help me with this problem? thx before 