Datagrid Error msg (class not reg.)

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I have just setup a new server with exactly the same .net framework software. My aspx datagrid page runs on one but not this other, with this error message.<BR><BR>Any ideas what is wrong?<BR><BR>Class not registered <BR>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. <BR><BR>Exception Details: System.Runtime.InteropServices.COMException: Class not registered<BR><BR>Source Error: <BR><BR><BR>Line 20: 'Fill Dataset...<BR>Line 21: Dim ds As DataSet = new Dataset()<BR>Line 22: objCmd.Fill(ds, "FeedbackTable")<BR>Line 23: <BR>Line 24: MyDataGrid.DataSource = ds.Tables("FeedbackTable").DefaultView<BR> <BR>..which didn't work. The reason I though I would need to re-install MDAC is because it says so in the script error message:<BR><BR>[InvalidOperationException: The .Net Data OLE DB Provider(System.Data.OleDb) requires Microsoft Data Access Components(MDAC). Please install Microsoft Data Access Components(MDAC) version 2.6 or later.]<BR>