When setting up a grid to print HTML, the modal that allows report selection (Colour/B&W, Full report/Current Page) comes up with a grayed out background to prevent you from selecting outside the modal. This in itself is fine.
However, It collapses the original frame containing the grid such that when you return from print, the grid is now artificially truncated with scroll-bars, instead of the normal screen. The only way you can get the screen back is to refresh the whole browser (not the iframe). Effectively this makes the print selection unusable.