Embedded Outlines disappear

Hello All,An application that we support is experiencing problems with embedded outlines. In a frameset, the left hand frame contains a navigation menu based on several embedded outlines on a form. The outlines are shown in a form and are controlled by hide-whens driven by a field value. When this value changes, the space an outline occupies is shown but sometimes doesn’t get filled with the actual outline: it remains blank. This is intermittent so not dependant on user - I do wonder if it’s a resources issue although it’s difficult to test.

Has anyone had this issue (see similar post from 8.0 client - http://www-10.lotus.com/ldd/nd8forum.nsf/5f27803bba85d8e285256bf10054620d/c8f2c85c23b3a9e4852573d1004b59c8?OpenDocument&Highlight=0,embedded,outline)? Any ideas (recreating the outlines, changing the design away from outlines)?

Thanks

David