MSChart - setting the Datasource to a recordset?

[VBKid04]

Am trying to use the MSChart here...

Was instructed to use it I should first:
-Open an ADODB recordset
-Set MSChart1.DataSource = recordset

but I can't get it working...

I have tried:

Dim chartRS As ADODB.Recordset
Set chartRS = New ADODB.Recordset
chartRS.Open "Select CustomerID, TaskID From CUSTOMER WHERE CUSTOMER.TaskID=TASK.TaskID"

Set MSChart1.DataSource = chartRS

but this brings up the error:

Run time error 3709:
Operation is not allowed on an object referencing a closed or invalid connection

-> Highlighting in yellow the line:
chartRS.Open "Select CustomerID, TaskID From CUSTOMER WHERE CUSTOMER.TaskID=TASK.TaskID"


I have also tried:

Dim chartRS As String
chartRS = "Select TaskID, CustomerID FROM TASK"
db.Execute chartRS

Set MSChart1.DataSource = chartRS

but this brings up the error:
Compile Error - object required

-> Highlighting in blue "chartRS" in the line Set MSChart1.DataSource = chartRS


Can anyone please aid me in getting this working?
Thanks