Go to any page providing multiple alternate stylesheets. Everytime you change stylesheet, the viewport shifts down by the number of pixels that you are from the top of the document. It seems that after switching stylesheets, the display code thinks that the view has shifted back to the top of the document (as in a reload) and so wants to shift it back down. Unfortunately, the view has *not* shifted to the top of the document, and so we end up going down past where we were before the change!

The shift problem has been fixed. It was a problem in the view code. Now what happens is that the scrollbar is reset to the top. That's a result of how things are currently implemented internally, rather than an explicit design choice (what we do is we remove the document element's frame and then insert a new hierarchy--as two separate steps--rather than treat it as a single replacement operation, which is why scrolling is reset)

setting qa_contact field.

Using 2/11 build, verified fixed.