I have placed a datagrid on my form...and i have written the following code on pageload event...

 Dim strconn As String = "Provider=Microsoft.Jet.OLEDB.4.0;datasource=D:\vb .net\db1.mdb"
 Dim strsql As String = "SELECT * FROM cust_details"

  Dim dbconn As New OleDb.OleDbConnection(strconn)
  Dim cmd As New OleDb.OleDbCommand(strsql, dbconn)
  dbconn.Open()

DataGrid1.DataSource = cmd.ExecuteReader(CommandBehavior.CloseConnection)
DataGrid1.DataBind()

When i run this page i am getting the following error

"System.Data.OleDb.OleDbException: Could not find installable ISAM.
Its saying the database is closed
"

Pls do help me