When logged in as a host/admin are you getting a Normal class wrapped around your content?

I would start by downloading Firebug for Firefox and using the "inspect" functionality to check out what fonts/styles are being applied to the text on the page.

I don't use firefox regularly, I am a PC, I use IE, but I do use firefox when i need firebug to track down errant CSS.

Forgive my ignorance (I'm not super-familiar with CSS), but what do you mean a "Normal class wrapped around your content"?

I got Firebug and it's pretty neat.  This is what it shows my page using for style sheets:

<style type="text/css" id="StylePlaceholder"/>

<link href="/assignment6/Portals/_default/default.css" type="text/css" rel="stylesheet" id="_assignment6_Portals__default_"/>

<link href="/assignment6/Portals/_default/Skins/MinimalExtropy/skin.css" type="text/css" rel="stylesheet" id="_assignment6_Portals__default_Skins_MinimalExtropy_"/>

<link href="/assignment6/Portals/0/portal.css" type="text/css" rel="stylesheet" id="_assignment6_Portals_0_"/>

<!--[if LT IE 7]><link id="IE6Minus" rel="stylesheet" type="text/css" href="/assignment6/Portals/_default/Skins/MinimalExtropy/ie6skin.css" /><![endif]-->

Not sure which stylesheet overrides which, but I copied all the .css files from the original DNN install files over the ones in my project, thinking that this would have fixed any errors in any CSS files, but I guess it's something else. 

I tried creating a brand new module to see if there were any differences between my module and the default one.  The asp looks pretty empty and the only thing I could see that looked different was that the default labels used CssClass = "normal". 

<asp:Label ID="lblContent" runat="server" CssClass="Normal"/>

I added this to one of my labels and it did reduce the font, but I'd rather not have to do this to everything on all my pages.

Thanks,

Kevin