Whether you have recently upgraded to AutoCAD 2009 or are on the process of deciding to upgrade or not, you might find the following links of interest: New Features...
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Learning About the New Features in AutoCAD 2009
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Installing SQL Server 2008 RC0 & Visual Studio 2008 SP1 Beta on the same machine
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I've been having some issues getting my VPC updated to SQL Server 2008 RC0 and Visual Studio 2008 SP1 Beta so I can record a couple screencasts on using Virtual Earth...