On Windows XP you may find that ClaroRead does not play in Adobe Reader with highlighting. Disabling Protected Mode may fix this.
- Opening Adobe Reader, open the Edit menu, and select the Preferences menu item.
- From the Categories list at the left select “Security (Enhanced)”
- Uncheck “Enable Protected Mode at startup” at the top.
- Restart Adobe Reader and try reading with ClaroRead again.
(The setting is located at the bottom of the General tab on older pre-XI versions of Adobe Reader)