I wonder if any of you have noticed this: for me, scrolling is only smooth when I open webpages right after I start Iron. When I Alt-Tab away to another application and come back to Iron after that, scrolling immediately becomes very jerky. I have tried using smoothscroll, but this makes no difference. Closing and restarting Iron always solves the problem of jerky scrolling, until I Alt-Tab to another application again. Any ideas what might be causing this and how it might be solved?