Grid Resize on Window Resize results in blank rows

I have a grid that expands on window resizing. The problem is that any rows that come into view are blank. If I scroll or sort the grid they all appear. This problem only occurs when virtual mode is true.

I am using the following to set the height after resize:

grid.setStyle("height", parseInt(w_newHeight - nCurrListHeight) + "px");

grid.setContentHeight(parseInt(w_newHeight - (nCurrListHeight + 4)), "total");

Is there a "Paint" function I need to call?

Try this:

grid.refresh();