I just noticed that rendering buttons in IE7 seems to be a little messed up. Some examples:
Try the Hello Dialog example, the button text is shifted to the right (in FF, it is centered, as I guess it should be).
Or try the Menu example, the buttons in the toolbar have a small gap at the left, although the text is aligned correct this time (again, everything is fine in FF).
In my own project, a toolbar with buttons is totally messed up (renderes fine in FF): the text is also shifted a lot to the right and clipped, icons are not visible.
Anyone else has noticed this?