I have taken your code and data and created a simple table in a DB where the fields are Date, Series1, Series2 etc. Date is the date/Time info, Series1 is the first double list etc.
Using my previous xaml, I have used this code behind and it still works. Can you confirm that you are using the latest beta (v0.8.2957.30556 - dated 12th Feb) as that might be the only difference.
string ConnectionString = string.Format("Provider=Microsoft.Jet.OLEDB.4.0; Data Source={0}", @"c:\Db1.mdb");
OleDbConnection Connection = new OleDbConnection(ConnectionString);
OleDbCommand Command = new OleDbCommand("Select * from [ForumTable1]", Connection);
OleDbDataAdapter DataAdapter = new OleDbDataAdapter(Command);
DataSet dataset = new DataSet();
DataAdapter.Fill(dataset, "ForumTable1");
SeriesAttributes dataSeries0 = new SeriesAttributes();
dataSeries0.ItemsSource = dataset.Tables["ForumTable1"].Rows;
dataSeries0.BindingPath = "Series1";
dataSeries0.Gallery = Gallery.Bar;
ctlChart1.Series.Clear();
ctlChart1.Series.Add(dataSeries0);