Codefilter: extra line breaks

I'm hoping someone out there has a good solution to a nagging problem I'm having with the codefilter module. I've already solved my first problem: that the codefilter css does not preserve the white space. I fixed that by modifying the codefilter.css file. Here is what my css looks like now:

div.codeblock {
  margin-top: 10px;
  margin-bottom: 10px;
  padding: 4px 4px 4px 4px;
  border: 1px solid #CCC;
  background-color: #EEE;
  font: normal 12px "courier new", courier, monospace;
  white-space: pre;
}

I can see from the Preview of this post that the Drupal site has not addressed this white space issue either (the css code above is inside of "code" tags), as the indenting of the lines inside of the curly braces has been lost. You'll notice in the code itself that I've also fiddled with the margins a bit, and also set a monospace font (two things that I'd love to see added to the codefilter head). The white-space element at the end takes care of the preservation of the indenting. Here is a post on my site that shows the result of my CSS:

http://www.developerdotstar.com/community/node/132

However, one problem remains: the extra line breaks. Depending on when you are reading this (that is, depending on whether I've found some solution to this problem), if you check out the link I just pasted above you'll see that while the indenting is preserved, there is an extra line break after each line. Here is the actual HTML that shows up in the browser:

<p><div class="codeblock"><code>public editUser2 editUser(){<br />

        editUser2 nextPage = (editUser2)pageWithName("editUser2");<br />
        nextPage.setUser(user);<br />
        return nextPage;<br />
    }

I've put this code inside of "pre" tags, and again here in the Drupal site's Preview, I see extra line breaks being added. It's pretty clear that whatever is doing this auto line-breaking (something in the node module, perhaps?) really should be skipping this for text that is inside of "pre" or "code" tags. What I mean is, we should not have any of those "p" or "br" tags.

Does anyone have any ideas? It's kind of embarrassing on my software development-oriented blogging site that my bloggers don't really have a way to post code without either a) losing all the white space altogether or b) keeping the white space but getting a ton of extra blank lines. It seems to me that I've done all I can within the codefilter css itself, and the only way to get past this is to address the auto-line-breaking that is happening in some downstream code.

Thanks,
Daniel Read