When I print from my Macintosh (version Mac OS X 10.4.11) to my Xerox Phaser6280dn using Adobe to print pdfs, the files print out with the ink caking up on the paper and the color relsolution is poor. When I print files other than Adobe file, everything prints fine. All the Macs in the office are doing this. All the PCs in the office do not have a problem printing Adobe pdfs, they are fine. I've called Xerox and they isolated the problem to be an Adobe problem. This use to work fine until about a week ago. What can I do? Any suggestions? I have to get this working soon.