I'm having a similar problem with my extruder not turning, but my movement axes working okay. I'm putting a RepRap duet V0.8.5 onto a Replicator 2. My firmware is the "RepRapFirmware FIRMWARE_VERSION: 1.09m-dc42 ELECTRONICS: Duet 0.85 DATE: 2015-12-08" I'm using Slic3r with Pronterface right now and I'm getting very inconsistent behavior, especially day-to-day when I come back to work on it agby Cortexion - Stepper Motors, Servo Motors, DC Motors
My M115 reports "RepRapFirmware FIRMWARE_VERSION:1.09 ELECTRONICSuet (+ Extension) DATE:2015-04-21" so it looks to be the 1.09 version you were talking about, unless I need to get a more specific sub-version of 1.09 (the -dc42 version) M119 returns "Endstops - X: at min stop, Y: at max stop, Z: at min stop" and I'm not really sure how to interpret that. Setting my M574 to S0 keeps giving me thaby Cortexion - CoreXY Machines
So short background info is this: - I'm upgrading the motherboard of a Makerbot Replicator 2 to a RepRap Duet v0.8.5 - I can control the printer's XYZ axes using Pronterface just fine - I had the web interface working one day (on Chrome) but I think because I'm on my work's network it assigns your laptop a new IP address when you reconnect to it so I've been having trouble reconnecting to the weby Cortexion - CoreXY Machines