audio clips crashing livecode

[revolution at duncansoftware.on-rev.com]

I was working on a program that included about a hundred small audio clips. Suddenly they wouldn't play and produced the spinning beach ball of death on my MacBook Pro running OSX 10.6.8. I couldn't see what I had done to cause this since the code change that I made was minor. Eventually I quit trying to work on that program when I discovered that no audio clips would play. Example, create a new stack. Import one audio clip and try to play it and livecode crashes. I have uninstalled all copies of livecode, searched and destroyed prefs and support files and done a clean install of 6.6.2 all to no avail. I just tried 6.6.3 and still no luck. These files all  play in Quicktime and iTunes.