I can’t believe I overlooked the 4th w. Late night coding I guess. I’ll have a look now.
As it looks, somethign might be pushing everything out of whack. Did you add a new sidebar or add anyhthing to your site? New plugin perhaps? Changed a widget?
If you haven’t touched anyhting, try a css reset? Place this at the beginning of our stylesheet. or you can add a @ import url(reset.css) to keep your main stylesheet clean.
/* reset styles - props eric meyer */
html,body,div,span,applet,object,iframe,h1,h2,h3,h4,h5,h6,p,blockquote,pre,a,abbr,acronym,address,big,cite,code,del,dfn,em,font,img,ins,kbd,q,s,samp,small,strike,strong,sub,sup,tt,var,dl,dt,dd,ol,ul,li,fieldset,form,label,legend,table,caption,tbody,tfoot,thead,tr,th,td{margin:0;padding:0;border:0;outline:0;font-weight:inherit;font-style:inherit;font-size:100%;font-family:inherit;vertical-align:baseline;}
:focus{outline:0;}
body{line-height:1;color:black;background:white;}
ol,ul{list-style:none;}
table{border-collapse:separate;border-spacing:0;}
caption,th,td{text-align:left;font-weight:normal;}
blockquote:before,blockquote:after,
q:before,q:after{content:"";}
blockquote,q{quotes:"" "";}
/* end reset */