diff --git a/include/nana/any.hpp b/include/nana/any.hpp
index 149be255..c9b3b33f 100644
--- a/include/nana/any.hpp
+++ b/include/nana/any.hpp
@@ -74,7 +74,7 @@ namespace nana
 		any(Value && value,
 				typename std::enable_if<!std::is_same<any&, Value>::value>::type * = nullptr,
 				typename std::enable_if<!std::is_const<Value>::value>::type* = nullptr)
-			: content_(new holder<typename std::decay<Value>::type>(static_cast<Value&&>(value)))
+			: content_(new holder<typename std::decay<Value>::type>(std::forward<Value>(value)))
 		{
 		}
 
@@ -87,7 +87,7 @@ namespace nana
 		template<class Value>
 		any& operator=(Value&& other)
 		{
-			any(other).swap(*this);
+			any(std::forward<Value>(other)).swap(*this);
 			return *this;
 		}
 
diff --git a/source/gui/widgets/listbox.cpp b/source/gui/widgets/listbox.cpp
index 2db0e5ab..d04b6c65 100644
--- a/source/gui/widgets/listbox.cpp
+++ b/source/gui/widgets/listbox.cpp
@@ -2395,7 +2395,9 @@ namespace nana
 								nana::rectangle r;
 								if (rect_lister(r))
 								{
-									auto top = new_where.second * item_h + header_visible_px();
+									//potential displacement due to partially visible first visible item
+									auto disp = origin.y - first_display().item * item_h;
+									auto top = new_where.second * item_h + header_visible_px() - disp;
 									if (checkarea(item_xpos(r), static_cast<int>(top)).is_hit(pos))
 										new_where.first = parts::checker;
 								}
@@ -5960,6 +5962,7 @@ namespace nana
 		{
 			internal_scope_guard lock;
 			_m_ess().lister.sort_column(col, &reverse);
+			_m_ess().update();
 		}
 
 		auto listbox::sort_col() const -> size_type
diff --git a/source/gui/widgets/treebox.cpp b/source/gui/widgets/treebox.cpp
index 377d0e7a..7e4a880e 100644
--- a/source/gui/widgets/treebox.cpp
+++ b/source/gui/widgets/treebox.cpp
@@ -1274,7 +1274,10 @@ namespace nana
 
 				item_proxy	item_proxy::operator++(int)
 				{
-					return sibling();
+					item_proxy ip(*this);
+					if(trigger_ && node_)
+						node_ = node_->next;
+					return ip;
 				}
 
 				item_proxy& item_proxy::operator*()
@@ -1952,7 +1955,7 @@ namespace nana
 					impl_->attr.tree_cont.for_each<item_locator&>(shape.first, nl);
 
 					auto const node = nl.node();
-					if (!node)
+					if (!node || !node->child)
 						return;
 
 					switch (nl.what())