Hi all, I'm looking for some advice. I recently downloaded Adobe LightRoom 5 from Amazon and am beginning to get to grips with it, and mostly liking it. I'm using a 15" MacBook Pro Retina and I bought a new Canon Pixma MG 7150 printer to print A4 size on Canon Glossy Photo Paper. The results I get are varied. After processing, the photos on screen look good, but the prints I get from the printer can be sometimes OK, sometimes lighter in tone, some colours not as expected, eg. olive green has a brown cast. I wouldn't expect the MacBook screen to need calibrated. So do I need to set a printer profile? If so, how on the MacBook Pro? Where do I find the Pixma 7150 paper profiles? If in the Lightroom print module if I choose other than 'manage by printer', the folder is empty. There are no profiles saved, even of the Canon paper that I use. Any help or suggestions appreciated. Many thanks for reading this.