When you export a file to PDF for prepress the CYMK values do not stay correct. Try a spot color and check values in Corel, export to PDF prepress. Open in Photoshop or Paint and check values. They are no longer correct!! This works fine in X4 and makes X5 pretty useless for commercial printing.
Scootz said:They are no longer correct!!
CorelDRAW X5 exports spot colors, RGB and CMYK to PDF perfectly it's your procedures. Can you describe you color management and PDF settings?