Hello. I have an ultimaker original. Initially I was having some issues where my layers would shift dramatically during a print. I tried belt tensioning, set screws, etc. but nothing helped. Eventually I found a link on the forum where somebody suggested upping the stepper motor current. I flipped the machine over, took off the fan cover and started adjusting the pots, but they just made the motors make strange noises. I turned it off and on again and now the printer won't even connect. The electronics fan doesn't turn at full speed and the ulticontrolller doesn't display anything. Please help, I really need to do a print. Thanks guys.