I bought a Janome 8077 (computerized) from Hancock Fabrics a month or so ago. It has worked beautifully UNTIL I tried to make a buttonhole. I have the manual. I followed the instructions. Placed the "R" foot on. Inserted the button in the holder at the back. Set the dial on 16 (square buttonhole). Inserted the needle, dropped the buttonhole foot and pressed the foot pedal. Stitched long bartack stitches then stitched the left side of the buttonhol (going backwards). There is an "L" shape showing on the digital display. It reaches the end of the button hole and starts the bartack stitches then beeps and stops. It shows a message of 6L in the digital display and will not run, change features, or anything. I have to turn the machine completely off, then turn it on again in order to get the machine to change dial numbers. I've worked on this for 3 days. Does anyone know what that error message (6L) means? It's not in the manual. Can someone please help????