Hi lads, Can anyone tell me a bit about PT500 application software? I recently had to replace the Hard drive in the host PC for our wave. I re-loaded the system software and re-configured. One thing I noticed however is in the "Calibrate T/C's" option, there was a -20 deg offset in the "solder temp", and I dont know if this was there previous to reloading the software. I checked my solder temp with a handheld temp unit and verified there was a 20deg delta in the displayed actual temp. I want to know if this setting is located on the system software (as found in the hard drive) or does it exist in an EPROM on the motherboard?