I have a page with a Pivot, with TextBox controls. In landscape, the SIP (the virtual keyboard) is opffsetted right by 42 pixels, thus clipped to its right.

Another app of mine also has a similar page, without the offsetted keyboard problem. Before I dig more into the differences between the two, has anyone ever encountered this problem before? Can we consider this a bug with Windows Phone 7.1?
(it does occur on a real device too)