I do not switch between matte and glossy paper often with my Epson R2400 because of the loss of ink. However, recently I did make the switch and put my PK cartridge in after running the ink out of my matte cartridge. Alas, the printer driver on my iMac, using Lion OSX did not give me the choice of Epson's Luster paper (the glossy paper). The driver did show the PK cartridge as being installed. At first I thought the problem was in Lightroom, where I was trying to print on Exhibition Fiber paper. I fussed with Lightroom for awhile before something clicked and I solved the problem. ... Read More!
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