Actually, it's not in the .css file. I ended up adding bgcolor="white" to the head.tpl file inside the first TABLE command. It made the header white, while the rest of the "body" of my store is grey, which was set in the css file. So the top of your head file should look something like this:
Code:
{* $Id: head.tpl,v 1.40.2.1 2004/07/14 08:10:08 svowl Exp $ *}
<TABLE bgcolor="white" border="0" cellpadding="0" cellspacing="0" width="100%">
With your color substituted for the word white. Did the trick for me
