* skins2/controls/ctrl_tree.cpp: Fixed a nasty bug. The tree playlist should

   now be much more stable.

modules/gui/skins2/controls/ctrl_tree.cpp

@@ -132,6 +132,9 @@ int CtrlTree::maxItems()
 
 void CtrlTree::onUpdate( Subject<VarTree> &rTree )
 {
+    // Invalidate the position when the tree is updated
+    m_lastPos = m_rTree.begin();
+
     autoScroll();
     m_pLastSelected = NULL;
 }