Well, I am back with the original problem. So far BB Support only suggested a reload of the 2013 and Coyote WT. THis was done and there was no change. I loaded BB onto a second computer and the same thing happened, or should I say didn't happen? The only thing in common with the two computers is Windows 7. Its not looking good for Wav render. Working in BB before the render the slow down function works, but an associated problem has now surfaced. In some cases, the original tempo plays for two bars on top of the slow down. Two different temps at once. I may just give up.