Index: /lang/vb2005/Tween/Tween/Tween.vb
===================================================================
--- /lang/vb2005/Tween/Tween/Tween.vb (revision 29603)
+++ /lang/vb2005/Tween/Tween/Tween.vb (revision 29684)
@@ -763,4 +763,6 @@
         Dim topId As Long = -1
         Dim befCnt As Integer = _curList.VirtualListSize
+
+        _curList.BeginUpdate()
         If _curList.VirtualListSize > 0 Then
             If _statuses.SortMode = IdComparerClass.ComparerMode.Id Then
@@ -845,5 +847,4 @@
             Dim lst As DetailsListView = DirectCast(tab.Controls(0), DetailsListView)
             Dim tabInfo As TabClass = _statuses.Tabs(tab.Text)
-            lst.BeginUpdate()
             If lst.VirtualListSize <> tabInfo.AllCount Then
                 If lst.Equals(_curList) Then
@@ -858,5 +859,4 @@
                 End If
             End If
-            lst.EndUpdate()
             If tabInfo.UnreadCount > 0 AndAlso tab.ImageIndex = -1 Then tab.ImageIndex = 0 'タブアイコン
         Next
@@ -882,4 +882,5 @@
         End If
 
+        _curList.EndUpdate()
         '新着通知
         If NewPostPopMenuItem.Checked AndAlso _