Reference Components and Projects Not Found

Several times I've tried to install nopCommerce (v.1.6 from Microsoft's site and v.1.7 from nopCommerce's site) without success.  As soon as I open the project or solution in VS2010 I receive the following error messages:


Warning  1  The referenced component 'Nop.BusinessLogic' could not be found.   
Warning  2  The referenced component 'Nop.Common' could not be found.   
Warning  3  The referenced component 'Nop.Controls' could not be found.
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Warning  111  The referenced project '..\Tax\Nop.Tax.GeneralTaxProvider\Nop.Tax.GeneralTaxProvider.csproj' does not exist.  NopCommerceStore
Warning  112  The referenced project '..\Tax\Nop.Tax.StrikeIron\Nop.Tax.StrikeIron.csproj' does not exist.  NopCommerceStore

56 referenced components and 56 referenced projects are not locatable.

I've checked file locations, changing .NET frameworks and replacing DLL's without luck.

Has anybody gotten this error or can somebody point me in the right direction?

Thanks!