We've been plagued by some rat crashes lately. I've found at least one problem, and it was fixed in the latest version of rat. You can find this built at http://www-unix.mcs.anl.gov/~olson/AG/Software/Linux/new-vv/ucl-rat-4.2.19-1 .i386.rpm If you've had probelms with this, please try installing this on your audio machine and let me know if it helps. --bob