Well UndeadSurfer, because it does not work. The videocard bios contains a list of the supported VESA modes and if the one you want is not listed there, com.apple.Boot.plist won't be much help. So the solution is to patch the video card temporarily at boot time. That way you can get the desired resolution.

uman, as far as I know the X4500 architecture is really different of the X3100 (according to Intel marketing, anyway). It's not like with the X3500, which was just a variation. But maybe you can join forces with this happy person: http://www.insanelymac.com/forum/ind...post&p=1184892

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Desktop - Vanilla 10.6.2 using Chameleon v2 RC4
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Laptop - Thinkpad X60s - Vanilla 10.6.2 using Chameleon v2 RC4