Sorry, I realized I had left out info after I posted my question.
Yes it is on a timer. The timer keeps the selection on the last index so it gives the appearance of a text box. I disable the timer when I want to scroll. Keep in mind that information is being added to the listbox the entire time. The only way to scroll is to hold the left click and use the scroll provided on the mouse. When info is not being added to the list box it works fine. Let me know what you think.
matt