title: C# ToolTip Problem
body: <p>i have the following code that does a image rollover on pictureboxes located inside a table. each table cell has a picturebox in it.</p>
  
  <p>the problem being even when in the code it is stated that no tooltip over the picturebox should be displayed, somehow some tooltips show up. i cant find it in the code as the code specifies no tooltips!</p>
  
  <p>i have tried several approaches but they all seem to collasp when tooltips are used.. is there a known bug in ToolTip control?</p>
  
  <pre><code>    private bool deployingShip = false;
  
      private void PictureBox_MouseEnter(object sender, EventArgs e)
      {
          PictureBox HomeCurrentPicBox = ((PictureBox)(sender));
          TableLayoutPanelCellPosition HomeCurrentPosition = HomeTableLayoutPanel.GetCellPosition(HomeCurrentPicBox);
  
          RefreshHomeGrid();
  
          if (deployingShip == false)
          {
              if (GameModel.HomeCellStatus(HomeCurrentPosition.Column, HomeCurrentPosition.Row) == Cell.cellState.Water)
              {
                  HomeTableLayoutPanel.Cursor = Cursors.Hand;
                  HomeCurrentPicBox.Image = Properties.Resources.Scan;
                  HomeCurrentPicBox.Refresh();
              }
              else
              {
                  HomeTableLayoutPanel.Cursor = Cursors.No;
                  HomeTableLayoutPanel.Refresh();
              }
              gameFormToolTip.SetToolTip(HomeCurrentPicBox, GameModel.alphaCoords(HomeCurrentPosition.Column) + "," + HomeCurrentPosition.Row);
           }
  
          if (deployingShip == true)
          {
              Cell.cellState state = GameModel.HomeCellStatus(HomeCurrentPosition.Column, HomeCurrentPosition.Row);
              switch (state)
              {
                  case Cell.cellState.Origin:
                      HomeTableLayoutPanel.Cursor = Cursors.Hand;
                      gameFormToolTip.SetToolTip(HomeCurrentPicBox, currentShip.ToString() + ": " + Cell.cellState.Origin);
                      break;
  
                  case Cell.cellState.EndPoint:
                      HomeTableLayoutPanel.Cursor = Cursors.Hand;
                      gameFormToolTip.SetToolTip(HomeCurrentPicBox, currentShip.ToString() + ": " + Cell.cellState.EndPoint);
                      break;
                  default:
                      HomeTableLayoutPanel.Cursor = Cursors.No;
                      HomeTableLayoutPanel.Refresh();
                      return;
              }
          }
      }
  
      private void PictureBox_MouseLeave(object sender, EventArgs e)
      {
          PictureBox HomeCurrentPicBox = ((PictureBox)(sender));
          TableLayoutPanelCellPosition HomeCurrentPosition = HomeTableLayoutPanel.GetCellPosition(HomeCurrentPicBox);
  
          if (GameModel.HomeCellStatus(HomeCurrentPosition.Column, HomeCurrentPosition.Row) == Cell.cellState.Water)
          {
              HomeCurrentPicBox.Image = Properties.Resources.Water;
              HomeCurrentPicBox.Refresh();
          }
      }
  </code></pre>
  
  <p>thank you, i fear you wont be able to find the bug from this submitted code :(</p>