Subnodes not movnig

Not sure if it is meant to be like this:
I was playing around with the nodes, and noted a problem with next situation:
I had 2 nodes in the root, node 7 and node 11. Node 7 has sub nodes (9 & 10). I decide to make node 7 in the root, a subnode of node 11. I did the edit with nodes_test.php. Now after saving, node 7 appeared indeed as a subnode of node 11, but the subnodes of node 7 do not appear anymore, and indeed when in look in the table for node 9 & 10, the position fields shows resp. 7>9, 7>10.
To reinstate them as sub node of 7, I manually changed in the table:
11>7>9 and 11>7>10 but this completly messed up the output :-s
Xavier

Hi Xavier ,

I got your email message, hope everything is ok now and no problems still :-)

about the c_icon field its not required ... i think it doesn't cause the testing example to stop working .. am I wrong ?

Thanks.

Shady,
Yes the c_icon field blocked if not present in the table.
I Restarted with clean install, and as soon I enter a 3th degree, the dispaly on nodes_test.php is somewhat missed up: Where normally the dropdown menu appears, appears the combobox, and the drop down menu appears discarded with "edit", "delete", "move up" move" down sections :-s

could you email me your database records and a screenshot of what is going there ?

Thanks