My friend's computer is reporting this error when trying to fill a DataSet. All was working fine until he installed the sample PetShop project from Microsoft. Anybody have a CLUE on HOW to fix? HE can't run ANY projects that connect to SQL.

Server Error in '/DataListDemo' Application.
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'ResourcePool' is not supported on the current platform.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.PlatformNotSupportedException: 'ResourcePool' is not supported on the current platform.

Source Error:

Line 77: SqlDataAdapter da = new SqlDataAdapter("Select * From Titles", conn);
Line 78: DataSet ds = new DataSet();
Line 79: da.Fill(ds, "title_record");
Line 80: DataList1.DataSource = ds;
Line 81: DataList1.DataBind();