I'm trying to use a scrollbar (VScroll) for a TListView: the recorded script doesn't playback

Hi,

I recorded this:

  listView = Aliases["ISSReportingSuite"]["GALAFListe"]["Seitenauswahl"];
  listView["HScroll"]["Pos"] = 0;
  listView["VScroll"]["Pos"] = 842;

When I try to play it back I get

Failed to set position 842 for the scroll bar. 14838 was set instead.    

What's going on? Why doesn't it work?

Thanks for your help

Seretta