Report Black element not detected in Laser Sensor Posted January 6, 2015 Hey, tnx for answering. I've just plugged it in another PC and it's detected. But the PC is with Win 7. I have no idea what the problem can be so it suddenly stopped being detected and have double click issues. I've tried to reinstall the UI, but I keep getting 'Please plug in device..'. Same with the other tools.