I've got a strange intermittent problem on my sttng. Here's the story. Ball one choose lock ball it locks correctly. Ball two choose lock it locks ball 2 correctly. These balls always lock correctly 100% of the time. Ball three choose light holodeck. Launch ball--holodeck insert lights up--drop target falls--ball goes into scoop--holodeck does not start--game gives you 100,000 points and holodeck insert is still lit and now lock it lit as well--then ball kicked back into play thru the left vuk. This problem happens intermittently and is annoying. I have checked the optos and drop target switch extensively and have never seen a hint of a problem. I can't even duplicate this problem exactly with the glass off so I'm not sure where the problem lies. If you skip the first opto in the subway ramp it doesn't duplicate the problem exactly. If you skip the first opto then the advance rank opto is triggered and you either get that award or shuttlecraft graphic leaving and this never happens when I have my issue. I have tried another mpu board with same results. Any help would be appreciated.