activecell.offset

Hello
In the following code i get a runtime error "Application-defined or object-defined error"
I know that a 1004 error is hard to find. Let me show you what i realize so far.
Here is the code

Sub Updater()
'
' Updater Macro
'
    Dim MySheetName As String, MyWBName As String, MyPathName As String
    Dim Workers As Integer, jobs As Integer, i As Integer
    Dim wb As Workbook, cwb As Workbook
    Dim temp As Range
    
    Set cwb = ThisWorkbook
    Application.ScreenUpdating = False
    MySheetName = Range("J1").Value & " " & Range("G1").Value 'First value is the cell for the YEAR. Second value is cell for the MONTH
    MyPathName = "f:\BackO\" 'To be changed as PATHS and DRIVES change
    Workers = Range("b1")
    jobs = 9 'UPDATE when number of jobs change
    
    For i = 0 To Workers - 1
        cwb.Worksheets("station").Cells(i * 11 + 3, 1).Select 
        MyWBName = MyPathName & ActiveCell.Value & ".xls"
        If Len(Dir(MyWBName)) = 0 Then
            MsgBox ("this file does not exist" & MyWBName)
        Else
            Set wb = Workbooks.Open(MyWBName)
  ***     cwb.Worksheets("stations").Range(ActiveCell.Offset(1, 1), ActiveCell.Offset(jobs, 31)).Value = wb.Worksheets("july 2010").Range("b4:af12").Value
            wb.Close
        End If
    Next i
    Application.ScreenUpdating = True
    
  
'
End Sub

The error occurs at the line I marked with ***
After much pain I found that if I change the "ActiveCell.Offset(1, 1), ActiveCell.Offset(jobs, 31)" part to any other range like " "b4:af13" " (like it should amount to at the first loop instance) it runs perfectly.

Can you please tell me how to fix it so I can run it with the activecell? (you might have noticed I am changing the active cell at each iteration of the loop)

Thank You