currently i see GuiImage.cpp: In member function 'bool lyx::graphics::GuiImage::scale(const lyx::graphics::Params&)': GuiImage.cpp:168: warning: comparison of unsigned expression < 0 is always false
which is because unsigned int scale; .... if (params.scale < 0 || params.scale == 100) return false; i remember theer was some strange bug with scaling of lyx window few weeks back. maybe its related. pavel