Visual Studio 2005 Beta 1 Installation -- Round 2

I'm having no luck...unpacked the ISO, attempted a reinstall, and am getting the following error:

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Visual Studio 2005 Beta Setup

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The installer has encountered an unexpected error installing this package. This may indicate a problem with this package. The error code is 2337.

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OK  

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I have no idea what's up...attempting to re-dl the package and try again.  Seems logical enough...