Just unboxed a new C2. When using the touch screen, it takes more than one try for it to sense a click. Normally 2 or 3 tries, sometimes as many as 5. I can't tell for sure whether it detects the click and is "thinking about it" or isn't detecting them at all; there's generally no feedback other than it just changing screens to it's pretty hard to tell. Oddly, the Z-axis calibration wizard seems better -- when I click the "Z+" it seems to register maybe 3 out of every 4 clicks. But then it took about 4 tries before the "Save" registered. And again it took 3 or 4 clicks on "Files" before it brought up the list of files for a test print. Any thoughts? I'm looking forward to operating it via the software so I can quit trying to use the touch screen!