There is a problem that occurs when resizing a grid column after scrolling down. The scroll bar jumps to the top although the grid itself does not scroll. The behaviour is different depending on the browser. Firefox and Internet Explorer suffer from this for every column resize. Safari and Chrome only show this problem the first time you resize a column. Opera doesn't exhibit the problem at all.
I appreciate that there's not much to be done if you can't reproduce the issue. Strangely I don't have this problem on the grids in the application I'm developing, so I don't personally need a fix for this.