Question : navigation buttons wrapping funny

I know this should be an easy fix (and maybe it was the full moon last night) but I just can't figure out why my navigation bar wraps at about 1/2 width making 2 layers of buttons when there should only be one, simple row.  Please advise.  

css is on this link too

http://nsitedesigns.com/nsitedesigns/salentino/test.html

Answer : navigation buttons wrapping funny

sidebar1 is floating up into the nav div and causing the buttons to wrap (see screenshot).  My guess is you should invert the order of the divs and clear floats before sidebar1 so it stays below the nav.