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Message: <blockquote data-quote="SteveJY" data-source="post: 1629018" data-attributes="member: 340001">Using non-native resolutions always degrades image quality. It might not matter so much for video, but it does make a significant difference to still images such as photographs and detailed diagrams. I'm certainly not going to put on a lower quality presentation just so that I can do it in Mac OS X rather than Windows.I’ve also created the presentation in a 4x3 format, including cropping images to fit, so converting to widescreen would be extra work.They certainly seemed to be communicating - it detected the projector, mirrored the display, and offered a selection of resolutions for it to use - so it seems strange that restarting the Macbook would make a difference. It's not something I've ever had to do with other laptops.I can certainly try restarting the next time I connect them up, but I’m a bit skeptical about that solving this problem when other people (on here and in another forum) have suggested SwitchResX as the only solution.The Macbook Pro may support that resolution, but that's not much use if I can't get Mac OS X to display it. The fact that Windows laptops successfully connect to the projector does suggest that it's Mac OS that's the problem. If Mac OS X didn't have some issues with display settings then utilities like SwitchResX wouldn't have to exist to fix them.Have you ever used a Mac with a 1400x1050 display and managed to get it working at that native resolution?I didn't suggest that it was a problem with Keynote, but I'll need to covert to a presentation format that I can use on Windows if I can't get the resolution I require in Mac OS X.</blockquote>

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