Thanks Mac. Have no idea while it only affects soloist instuments. I'll check later when home from work. A little frustrated as I read quite a few reviews that were all favorable and specifically asked PG music if the SD2 would operate well with 2009.5 build 288. In resonse to Silvertones post-- I have the Everything Pak which will run quite a bit more. It's a shame because the SD2 sounds great. If I can get this worked out I'll be happy with the purchase-- if not I'll probably return the module. I'm going to contact support again and see if there is any fix other than a complete reinstall. I feel if there was a possible known problem with 2009.5 and the Ketron I wish I would have been informed by PG before the purchase. I'll poke around preferences and thanks again Mac for the starting point of my concern, and I'll take your advise about changing things one at a time.
Andy