Yes, you read it correctly, Dreamweaver CS3 is rewriting my code. I'll go to save a file and upload it to my web site, only to get strange ColdFusion errors about unbalanced tags. I finally determined that if I close and reopen the file, I'll see the changes.
Fix the file, save, and re-upload, and the errors reappear. Needless to say, this is extremely frustrating, as you can never tell when deploying a set of changes to a site will work or not.
I've included a YouTube video after the break that shows the entire process.