got my JAW enclosure completed and powered up was reading 34.28 on display and the sensor heats up. coupled up to laptop and tried to upload firmware, established link with laptop and upload of firmware was succesful but now i have lost the display. Any JAW experts out there

Join the rest of the people this has happened to. http://www.14point7.com/forum/

When you upgrade the firmware, it loses all the settings so you have to go through the menus and download all the various parameters including the display. Just work your way through the Config menu (assuming you are using the latest firmware/Jaw edit version.

That said, many people have had huge problems with the latest firmware, and the author seems to have given up posting on the forum, so it might be worth using a previous version.