Random, unwanted Buck Rogers zap gun noises being triggered, sometimes on release sometimes totally random

    I'm having intermittent problems with random notes being triggered. Usually what it sounds like is as if I had portamento and mono on and hit a note several octaves below the note I'm playing. This happens at random, and yes, I've tried re-setting the keyboard, unplugging, holding down Arp Edit while plugging in, etc. It will go for a while without the problem - sometimes for days - then suddenly start making Buck Rogers zap gun noises again. Could this be dirty contacts? Anyone else seen similar issues?

    OK, now I'm on to something (or on something ;) ). After that last amendment to the post (Live), I decided to try the keyboard outside of the sequencer, and I'm not having any problems at all. Note that I have the problems whether or not I'm recording, as long as Live is running with an instance of the Virus VST. I have the plugin set to Output 1 L+R on the Common tab. I'm also getting white noise that isn't in the patch (ROM-L 81 Orion PX <- actually 3 spaces in the name, but don't know if this forum will munge &nbsp;) and random oscillator drift. I'm going to hunt around in Live to see if I can find where it's making the keyboard borked, but in the meantime, if anyone knows of a solution, I'd be most grateful. This is driving me NUTS!!!

    I should have said "almost" no problems at all. It depends on the patch. For example, with DigmahalPX (I've got it in ROM-L 35) there are clicks that obviously shouldn't be in there. They sound like loose wire clicks, not envelope clicks. Using the plugin, I can go for long periods without any weirdness, then all of a sudden it just goes nuts. Oscillator drift, re-triggered notes, the aforementioned zap noises. I noticed that the previous owner had to replace some components, but the part that says what was replaced has a security grid overlay that makes that part unreadable. I'm also noticing a significant response and tone difference with and without the VC plugin. I'm really beginning to wish I'd gone with plug-ins and a MIDI controller.
    wtf?