Does anyone know if there is any way that esko's preflight parameters include a warning for white text or white objects overprinting and thus disappearing when being sent to the imagesetter? We have been burned multiple times by this. We receive files from customers where the artist will click on overprint for white. And the only way to catch the problem is in viewer or having to select each individual white element on a job. When we receive huge files with this problem it's kind of hard to go over each job with a fine tooth comb. Thank you in advance for responding.