This topic does not use a table cell and therefore does not appear at a consistent size (in Internet Explorer using WebHelp). If the help window changes in width, so does the width of the popup. The best way to give popup topics a consistent look and feel (and add some eye appeal) is to place the text inside a single table cell approximately 300 pixels wide. If not, your text may stretch out and may hinder viewing the underlying topic.
Netscape Navigator displays topics in a separate browser window and therefore does not have the same display properties as Internet Explorer.