Dave, will you please send us a CDROM with 2 songs on it that exhibit this problem? Put your name on the disc so we can return it to you. Also, either reference this Thread Title (or paste in
http://forum.mtu.com/showthread.php?t=8463).
We will find what is unique in these files and fix it. I will say that in the past when we tackled graphics problems like this, it can take a while to find and fix. The RW renderer code is very complex, and that's what must change to handle problems like this.