用F1Book做的ACTIVEX在IE8中的问题

Delphi(Pascal) code

procedure TActiveFormX.SetCellsBorder(startRow, startCol, endRow,  endCol: Integer);var cellfrmt :F1CellFormat ;begin  F1Book61.SetFocus;     ShowMessage('aaa');    try      F1Book61.DefaultInterface.SelStartRow:=3;       F1Book61.DefaultInterface.SelStartCol:=3;       F1Book61.DefaultInterface.SelEndRow:=6;       F1Book61.DefaultInterface.SelEndCol:=6;  cellfrmt := F1Book61.CreateNewCellFormat;//上句出问题：canves does not drawing   ShowMessage('1');  cellfrmt.MergeCells:=True;//有时上句也出问题   ShowMessage('2');  cellfrmt.BorderStyle[F1RightBorder] := F1BorderThin;  cellfrmt.BorderStyle[F1LeftBorder] := F1BorderThin ;  cellfrmt.BorderStyle[F1TopBorder] := F1BorderThin ;  cellfrmt.BorderStyle[F1BottomBorder] := F1BorderThin ;  ShowMessage('3');  cellfrmt.BorderColor[F1RightBorder] :=clBlack;  cellfrmt.BorderColor[F1LeftBorder] := clBlack;  cellfrmt.BorderColor[F1TopBorder] :=clBlack;  cellfrmt.BorderColor[F1BottomBorder] :=clBlack;  ShowMessage('4');     F1Book61.SetCellFormat( cellfrmt);  except    on E:Exception do    ShowMessage(e.Message);  end;//  F1Book61.DefaultInterface.SelStartCol:=1;//  F1Book61.DefaultInterface.