can someone help?

Hey vman....Sorry to hear about your trouble. I am no expert on the system, but I have had to do a little troubleshooting. Kiwidave is correct with making sure the lighting is correct....that is very imprortant. My initial problem was that my light source was too bright. Have you gone thru the troubleshooting steps on the Slotdragon site? I would definitely start there. Go thru every step and verify correct operation. Make very sure your light source and sensor calibration are working properly before going further. I had a similar problem that turned out to be a sensor that was intermittently shorting out. Ordered some replacements and it fixed the problem. Make sure all the cables are connected properly as well. Not saying that you haven't already done these things, but more often than not, it could be a fundamental problem. Hope this helps....be sure and give us an update. Will continue to try and help.