Access to Cubes from Excel

I have a developer that I am trying to get connected to an Analysis 2005 cuber from Excel. He is able to make the original connection, can see the database, etc. When it tries to fetch the data to the spreadsheet he receives the following err:
Initialization of the data source failed
Any ideas? I'm sure I'm missing a simple step.

Thanks

[380 byte] By [MarkE.Johnson] at [2008-2-22]

SQL Server

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