I've had luck setting ListBox pointer using value. I don't know if ADDItem is required. The Pointer Value needs to match the list value in case and lengtht.
With your form open and the lisbox populated try this:
MyForm.MyListBox.Value=some charracter string


>Ok, thanks Trey,
>
>I wanted to try and avoid having to loop through all the values, expecially since the RowSource table could contain upwards of 5,000 records... but, oh well... I'll see how your suggestion works.
>
>- Brian
>
>>
>>Not directly
>>Depending on the RowSourceType, there a number of options - this ought to work for any RowSourceType

lcSearch = "findthis"
>>With thisform.list1
>>     For ji = 1 To .ListCount
>>          If .List(ji)=lcSearch
>>               .ListIndex = ji
>>               Exit
>>          EndIf
>>     EndFor
>>EndWith

If the RowSourceType is an array or a alias or fields, you can go directly to the RowSource and find the value which will reflect in the listbox. e.g., if RowSourceType is an array, e.g., thisform.aSource

With thisform
>>     .list1.ListIndex = Ceiling(AScan(.aSource, lcSearch)/ALen(.aSource,2))
>>EndWith