I have a RadGrid with client-side EnableDragToSelectRows set to true. My grid also uses drop-down lists for filtering as demonstrated in the RadGrid docs. When I am dragging to select rows, the grey/blue box that appears to highlight what will be selected is misplaced. If I start highlighting from the top row of the grid and drag down, the bottom edge of the highlight box is always about 20 pixels above where my mouse pointer is. I know that the functionality is to start the box at the top of the first row selected; it looks like the top edge of my box is also slightly too high also. Is this a known issue? Is there any way to adjust the positioning of the box?