Listbox freezes when workbook is opened.

[kosherboy]

Hi.
I have a little issue with a list-box. When i open my workbook and i click on the List Box the list box freezes, excel doesn't let me select it until i go to design mode, select the list box then close out of design mode. This sort of "fixes" the issue but i would rather not do so this way.
Does anyone have any ideas on how this problem can be solved?

[Norie]

How are you populating the listbox?

[kosherboy]

From a different sheet on the same workbook.