...well you know when companies say "use our paper and ink"? Well, some may think its BS but I found out the hard way. I started bringing my empty ink cartridges to Cartridge World to get re-filled, I saved half using them. Well that worked fine for 3 months or so until one day my prints started coming out with a blue tint to them. I checked the nozzle head, did an alignment and tried 4 different brands of paper. Checked Photoshop to see if any settings were changed. Nothing. Thought about buying new Canon cartridges but figured why all of a sudden would the pictures be blue after using re-fill inks, so I ruled that out. Go to Photo Expo on Saturday and what's the first thing the Canon rep tells me when I show him the print that's blue? "You're using re-fills aren't you." He said that Canon makes specific inks and that cheap soy ink that second hand stores use is not the same. I'm about to put in new Canon ink cartridges and test it, I'm sure that's the problem. So I guess I got what I paid for.