I wasn’t aware that you can install IE on a Mac without running BootCamp, Parallels, VMWare but you can using Darwine. IE runs in an X11 window. It’s a little slow and I haven’t managed to get any of the transparent PNG methods to work (Edit-Add: no DirectX support in Darwine yet) but other than that it seems to work just fine…at least with the limited time I’ve used it. Here’s the info… Link - Link
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Darwine
XQuartz
ie4osx
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Screen Cap attached - ExpressionEngine.com - In IE6