Thanks Nick,
I didn't realize the range data was saved in the IGC file.
I just checked Stuart's file, his is set to 20000.
So something else must have changed.
I looked at some of his previous files and the range tool show ranged of 5-6km. This years flight with the new firmware only shows about 3km on the range tool. We were very carefull not to change the configuration only updated the firmware.

Brian
V6