1 scrollpane, many textfield - uneven scrolling problem

Hi, I have 1 scrollpane with 1 movieclip as its source. The movieclip contains many textfields, 1 large, the rest small. Small textfields are positioned between the lines of the large textfield. The idea of putting all of these in one movieclip was to get the scrollpane to scroll the contents of the movieclip together. However, the scrollbar of the scrollpane seems to scroll these separately, so text that appears above line 1, will still appear above line 4 and only then disappear, etc. up or down. What can be done to change this?
TIA.