So on all my Valve titles on the PC, I can change my screen resolution to just about whatever I want. I have a Samsung T240 HD, native resolution is 1920x1200. With Portal now, I can only select the few resolutions that just so happen to be in the list of available resolutions when I pull up display preferences. My ultimate goal here is to get 1280x720, and right now the only 16:9 resolution listed is the odd 1360x768. Is there a list in the library or somewhere that OS X uses to retrieve available resolutions in the display preferences? Because if there is, Portal is using the same list. I'd like to go in and see if I can modify the list to include some pretty standard resolutions such as 1920x1080 and 1280x720 (both of which I can access on the same monitor when I'm booted in Windows). And to the zealous Mac apologists around here... no I can't 'get by' on the other resolutions. I record my gameplay with FRAPS on the bootcamp side when I play TF2, and I'm not looking for a performance boost or anything by lowering my resolution (on Windows I can run TF2 at ~180 fps at full settings 1920x1200 on my Mac Pro, Portal at 300fps), I'm simply looking to conform to a standard video resolution so the video I capture on either system is identicalI already have a vast library of clips at 720p.