Hi I have this jsFiddle that shows what may be a bug. Note that this is a paste of the derived html - basically I reset the height programmatically so that all the buttons are the same height (should be simple)
For what it's worth: here is the programmatic re-height that I do after the butonset() call
fullHeight = 0;
$('.jQueryUIGrid_topgrid').each(function(){
fullHeight = ((fullHeight<$(this).height()) ? $(this).outerHeight() : fullHeight);
});
$('.jQueryUIGrid_topgrid').each(function(){
$(this).css('height',fullHeight);
});
The issue isn't just that they are behaving oddly, (up, down, all over the place) it's that I can see no information in firebug as to why this is happening.
Set a vertical-align on .ui-button
#jQueryUIGrid_radio .ui-button {
vertical-align: bottom;
}