If you are frustrated in trying to maintain continuity while using the online manual via a browser then you will be interested in "ExtraChm". It uses the supplied zorro.chm file and provides expandable/collapsible contents, indexing, searching and bookmarks. Plus multiple tabs you can bounce between as needed. The site is http://www.extrachm.com It's free but you can register it for $15.00. It"s a deal.