Firefox only: Font style applies after editor shows the text

When CKEditor loads, it displays the text in the default browser font for about half a second, and then styles it to reflect the correct styles from the stylesheet. Even the demo page (http://ckeditor.com/demo) does this. It shows the Little Red Riding Hood text in Times New Roman for a brief moment, and then it changes to the correct font. Bold, italic, and other styles are correct. This looks really bad, I think, and I'm trying to figure out how to fix it.

I'm running Firefox 3.6.3 on Windows 7 64bit. It doesn't seem to happen using Internet Explorer.

Please help! Thanks in advance.