If you could, please check my site to see if the header graphic lines up with the navigation bar:
I'm using the Semiologic 2 colum template (other plugins used are listed in the footer), but have been trying to mod the top to remove the tagline and have the graphic line up with the nav bar, which goes to the left of the blog text (although I can't find the place in the CSS where this is called out). BTW, I've checked the alignment in Internet Explorer and Firefox, and it seems to, although I have some spaces between them in Firefox that aren't in IE. Even more strange, on the single posts, the header in Firefox is perfectly matched with the nav-bar (no space in between), just not on the front.
If you see a problem, please post here, along with which browser (and version) you are using.
Also, I'd be interested in any other comments you have, including speed, layout, etc. Thanks again.