jQuery Grid Plugin - jqGrid

Hi,

I am using a jqGrid 3.6.5 configured as a tree grid (using adjacency model), data retrieved as JSON.

When the jqGrid has the 'scroll' option set to 'true', I have noticed the following weird behaviour:

1. I cannot expand more than two levels: the third level stays blank, even if a new row with a valid parent is returned from the server.
2. When pressing the navigator refresh button,
   new rows are fetched and added at the end of the displayed rows.

When setting scroll = false, everything is working just fine.

Is it an known issue ? Is it linked to the fact that the tree grid doesn't support paging ?

Many thanks for your great job

Laurent