I used this code to test the tooltip of the nodes of the TreeView

Code:
for x = 0 to 10
TreeView1.nodes.item(x).tooltiptext = TreeView1.nodes.item(x).text
next

and it worked (but not with all nodes)... anyway, when i tried to change the code, it didnt change... I even deleted the whole code, but the tooltiptext of the nodes is still the same as was written in first code!! It didnt change!! It even wasnt deleted!!

Where is the problem?