today i transfered my duet to a new corexy build and before i go on i wanted to test the movement..after connecting i had movement but in the wrong way...so i sent a m564 to check each motor separately...Z all ok disconected z wiring plug in X movement but i get the short to ground driver 0 error.....unplugged everything and click on x to move i get the same message.....is that normal?????note that i running the 2.04 firmware