Oh, and Glenn01, No. It doesn't appear to be intermittent. I've heard it consistently. Sometimes it depends on the key too which is Strange.

For example, I have the midi file "At Last" by Celine Dion, and it has a prominent violin solo throughout the song. Well it sounds fine in the original key, but for some reason when I raise it up 3 semi-tones for MY key, the violin's vibrato sounds a lot more like a wobble instead of a vibrato and it sounds off.

If it wasn't automatic, I could actually modify the track and add EXACTLY how much vibrato and in what spots I want it with my Korg keyboard.

So you see that in this case, I'm stuck with what sounds like a violin that's "off" until I figure out how to fix this.