fixed columns and radio buttons

hi there, i'm using datatables to create a table with 3 fixed colulmns on the right, with a radio input in each td of these 3cols.
my problem is that every time i reorder, or change the result number, (i guess all the actions having a .fnDraw() effect) the radio inputs get unchecked...

if someone has an idea, i'd be glad to read it.
see ya