by the time you deploy you definitly want those options ticked on, so it's worth following up on this.
you mention the error does not occur in the examlpe - so can you make an example app for us where it _does_ occur?
another approach - delete all the .gz files from your web\scripts and web\styles folders, and manually run the gzipall.bat (which is in your app folder). It's possible an old file is causing you pain.
cheers
Bruce