Table gets WIDTH:0px when "bVisible":false is used

I noticed that when I use "bVisible":false in some colunms the table auto-width does'n work.

I checked the innerHTML of the table parentNode and noticed that when I use bVisible:false in "aoColumns" definition DOM changes the style attribute of the table adding a WIDTH:0px;.

When bVisible is not used in "aoColumns" colunm definition this "WIDTH:0px;" doen't appear in the style attribute of the table and so AutoWidth works.