Below is an example of what I want my CHM to look like. As you can see, when I am in the Critical Section topic, I can see that it is highlighted in the TOC. This happens for every topic.
In my CHM file, when i click on a topic, this topic is not highlighted in the TOC. For example, when i click on a link from a different page, in the TOC, the topic that I am on is not highlighted. how do i correct this?
I think what you are saying is that if you click on a link in the TOC, it is highlighted but when you click on links in topics, the target topic is not highlighted in the TOC.
If so, make sure the auto sync box is checked.
See www.grainge.org for RoboHelp and Authoring tips
Another possibility for getting the open/selected topic to appear highlighted in the chm TOC.
Open the Generate box (HTML Help Options).
Click Edit in the Additional Options section.
Open the TOC Styles tab.
Check the Always show selection box.