List_SortColumn change style of header, how to fix it?

Hi, I am following Web Exercise chapter 22 Scaffolding and RichWidget.

After adding List_SortColumn to Title, Year and GrossTakings (but not Plot Summary), my Movie screen become like this:

Notice that Title and Plot Summary have bold appearances (maybe because Title is the default sort, and Plot Summary doesn't have List_SortColumn).

How can I fix so it have consistent style?

Thanks in advance.

sorry, wrong forum.

admin, please delete this.

Hi Harlin,

I moved your post to Technology & Integration forum.