I'm sorry... when you mentioned 'Category Header' I immediately thought you were referring to the header in the left column... I had kinda decided that the problem wasn't there so I wasn't sure what you were talking about.
If you referring the 'Title Header' in the graphic below, that is not a graphic image. After reading your advice yesterday regarding images being used in headers and text style effects in CSS, I decided to just use text. The text I used in the following 'Title Header' is Papyrus and it was setup as a 'DialogSubCatTitle' style.
http://www.macaspen.com/unititled.gif
So I guess I'm back to square one... I initially thought that it had something to do with the CSS but I've played around with just about every combination and it hasn't changed the problem.
Hope were both talking about the same area now otherwise I'll feel real stupid... in which case you don't need to answer this posting.
Thanks for
all the help!