what u need to do is.

un-install cool edit, delete it completely, and download adobe audition.

its more stable, more updated, has better editing tools and doesnt crash and ive never once had an error message from it.

and even better, adobe audition 2.0 has just come out, 1.5 is a much smaller download but 2.0 apparently has waaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaay more going for it and is worth downloading the 800+ MB... thats what im told, not sure myself, im yet to find a fast enough download of it.