randbetween

Hi,

I use Excel 2003 and I have installed Analysis Toolpak and Analysis ToolPak - VBA.

ThisWorkbook.Worksheets("Sheet2").Cells(i, 2) = Application.WorksheetFunction.randbetween(10, 20)

causes the error message

Run-time error '438': Object doesn't support this property or method

How can this be fixed?

Thanks,
Selena