Hi Martin, it is me again. ;-) I added the support for minipage convertions to lyx2lyx, but I did not considered the default values of those values not defined in the 1.3 version.
Because of it I get: $src/lyx InsetBox::Read: Missing 'hor_pos'-tag!c InsetBox::Read: Missing 'has_inner_box'-tag! InsetBox::Read: Missing 'inner_pos'-tag!c InsetBox::Read: Missing 'use_parbox'-tag! InsetBox::Read: Missing 'width'-tag! InsetBox::Read: Missing 'special'-tag! InsetBox::Read: Missing 'height'-tag! InsetBox::Read: Missing 'height_special'-tag! InsetCollapsable::Read: Missing collapsed! Do you, and others, think that I should set the default values of the missing parameter? This will be probably safer when dealing with later convertions, but I would like to hear from other developers. -- José Abílio LyX and docbook, a perfect match. :-)