Creating a menu that is always aligned to the right... (in FrontPage or DW)

Well I don’t really know where to post this so i figuired Random would be OK. well I need to make a menu, that has a background of all blue. I dont want to use frames so I figuired Tables would be the best way to do this. Well whenever I set a background color to a cell, there is ALWAYS a white border, where the table isn’t there. I tried setting the height, in precent, to 100 but there is still always space where the table doesn’t cover. Does anyone know how to make a table cover the whole screen, allowing me to set a cell background color to a side, where therre is no white margins.