Deleting an MS Access record in vb.net

I am writing a vb.net application that links to an MS Access database.
The connection and dataset have been declared in a module. The connection works - I have already successfully coded an "Add new row" and a "Select".

Problem is: This delete routine gives me an error message on the line with the "Update". I get a "No value given for one or more required parameters".

I AM STUMPED. SOMEBODY PLEASE HELP!!!!!
Here is my code: ( my connection and dataset are declared in a module)
Try

Dim CmdAdapter AsNew OleDbDataAdapter("select * from Clients where CID=" & CID, dbConn)

Dim CmdUpdate AsNew OleDbCommandBuilder(CmdAdapter)

CmdAdapter.Fill(dbDataset, "clients")

dbDataset.Tables("clients").Rows(0).Delete()

CmdAdapter.Update(dbDataset, "clients")

Catch ex As Exception

MsgBox(ex.ToString)

EndTry