First, this is NOT a repost of me previously posting about this problem. I originally said the problem was in Safari and I posted in the appropriate forum about it, but this problem is more than Safari, it's throughout the operating system. I'm running Mountain Lion on an early 2008 15 inch MBP. Various parts have been replaced over the years (screen bezel, top cover, cover around trackpad/keyboard, battery, RAM upgraded) but I doubt this has to do with my problem. (All images are below) My computer gives images a red (or pinkish) tint sometimes. With Safari, it's whenever I zoom in on a webpage (either pinching or double tapping). Then I noticed that it also happens when I used quicklook to look at a .rar file. Attached is the problem with an automator thing I made. There's no problem with folders though. Now it happened again, this time for en ENTIRE keynote presentation. The tint didn't appear when I created or modified the presentation, only when I went to view it on my computer. When I get home, I'll connect my computer to my TV and see if it has the tint on another display, but until then, has anyone else had this problem? It's got to be something with the operating system (as it didn't happen with Leopard, Snow Leopard, or Lion). Also, I installed Mountain Lion directly from the Mac App Store, no clean installation or whatever. I'm currently verifying (and then repairing) any disk permissions. I'll update here if the problem persists. Any help would be greatly appreciated. EDIT: Repairing permissions did nothing to fix the problem.