Hi, (All controls referred to here are Infragistics Net Advantage Controls.) I am using "6.3.20063.28 - TestAdvantage for Windows Forms (HP-QTP) 2006 Volume 3 for CLR 2.0" . I am unable to check/uncheck a checkbox in a tree. We have tried to manipulate the node coordinates to click on the checkbox (by using GetTextLocation function using the node id as the search sting). Though this works for root nodes, any node in the tree with level greater than 1, the coordinates recognised is the coordinates of the whole pane. We have tried using the CheckNode function also, did not quite serve the purpose. Did anyone face an issue likewise? Thanks, Freethan.