I keep getting a lot of "Use of variable prior to assignment" warnings in VB 2005. I know that I can turn them off at the project level and usually do this, but it makes me suspicious that maybe I am doing something that I shouldn't. Here is a snippet in a business class:

    Public Function LoadHistoricalRates() As HistoricalRatesDS

        'This is my data access class...
        Dim myHistoricalRatesData As New HistoricalRatesData
        'This is my dataset.  I don't instantiate it here because it is instantiated
        'in my data access class...
        Dim myHistoricalRatesDS As HistoricalRatesDS

        'An instance of HistoricalRatesDS is instantiated in my data access
        'class so I don't instantiate it again...
        myHistoricalRatesDS = myHistoricalRatesData.LoadHistoricalRates

        'Here is where I get the warning...
        Return myHistoricalRatesDS

    End Function