I can't use the left arrow on my Viki, only the right arrow will select things. Been using this firmware with my Viki without issue for some time now. Has me wondering if there may be an undocumented difference in Viki's?

Tony,

Pull the black wire from EXT2 pin 20 and see if it quits. That's the wire that makes the little button next to the sdcard on the VIKI work. It's rather useless, so if that fixes it no big loss...

I'm using the same IKEA cabinet with two doors. All I use is ABS and this works great. During a four hour print the internal temp got to 39c. That's with the bed at 90c and printing at 245c.

Hey Tony, There are two yellow wires from the VIKI that end up on the EXT2 pins. Make sure the yellow and black wires that you are moving are the ones that are from the same harness on the VIKI. That should leave a white and yellow wire (from the other VIKI harness) connected to EXT2 pins 19 and 17 ...