I have built an entire Giga setup for the purpose of using the White Grand piano samples in a live/permanent stage setup. I am playing an older Mark series Kurzweil full sized keyboard. I have a big problem...when I load in multiple GIG files (the White Grand requires 4) the keyboard changes all 4 ports back to one GIG file after I play for a minute. I have done all I can to think of what signal this keyboard is sending to GigaStudio to make it change like this. Does anyone know if this is a simple settings prob with the keyboard or signs that this thing is broke? Also, this problem only happens with this keyboard, but I have no choice...I have to use it. Thanks for any help!