Treeview Control - Display errors

[Athan]

I use MS activex treeview control in my asp pages. The problem I have
is that some computers display the treeview with no problems while
others display the control without the text on the nodes. I checked the
IE settings, IE version, comctl32.ocx version,... everything seems to
be the same on the machines that do not have the problem and on the
machines with the problem...
this is a simplified code extract of the treeview control:
<object id="oTreeView"
classid="clsid:C74190B6-8589-11D1-B16A-00C0F0283628"
width=100% height=200>
<param name="Style" value="6">
<param name="LineStyle" value="1">
<param name="HideSelection" value="0">
<param name="_ExtentX" value="25797">
<param name="_ExtentY" value="5292">
<param name="_Version" value="393217">
<param name="Indentation" value="1000">
<param name="LabelEdit" value="0">
<param name="PathSeparator" value="\">
<param name="Sorted" value="0">
<param name="Checkboxes" value="0">
<param name="FullRowSelect" value="0">
<param name="HotTracking" value="0">
<param name="Scroll" value="1">
<param name="SingleSel" value="0">
<param name="ImageList" value>
<param name="BorderStyle" value="0">
<param name="Appearance" value="1">
<param name="MousePointer" value="0">
<param name="Enabled" value="1">
<param name="OLEDragMode" value="0">
<param name="OLEDropMode" value="0">
</object>
<span id="oSpan1"></span>
<script>
oRoot = oTreeView.Nodes.Add();
oRoot.Text = "This is the root node";
oChild = oTreeView.Nodes.Add(oRoot, 4);
oChild.Text = "This is a child node";
oTreeView.Nodes.Add(oRoot, 2, "", "This is a sibling");
oTreeView.Nodes.Add(oChild, 4, "", "Child's child");
oRoot.Expanded = true;
</script>
<script for="oTreeView" event="NodeClick">
oCurrentNode = oTreeView.SelectedItem;
if (oCurrentNode) {
sPath = oCurrentNode.FullPath;
oSpan1.innerText = "Path: " + sPath;
}
</script>
Any input is greately appreciated.