vb6.0实时错误381：下标越限

本人新手上路，想编个请帖，碰到问题，请高手指点。

以下是代码：（MS1、MS2是MSHFlexGrid1控件）
Private Sub Command1_Click()  '横排打印
Dim i, j, n As Integer
Dim ch As String
'
Printer.PaperSize = 9 '设置纸张类型为A4
Printer.ScaleMode = 6 '设置计量单位为毫米
Printer.FontName = "宋体"
Printer.FontSize = 16
Printer.FontBold = False
'
For i = 1 To MS1.Rows
  For j = 1 To MS2.Rows
    Printer.CurrentX = Val(MS2.TextMatrix(j, 4))
    Printer.CurrentY = Val(MS2.TextMatrix(j, 5))
    Printer.FontName = MS2.TextMatrix(j, 6)
    Printer.FontSize = Val(MS2.TextMatrix(j, 7))
    Printer.FontBold = MS2.TextMatrix(j, 8)
    Printer.Print MS2.TextMatrix(j, 3)
  Next
  Printer.FontName = Text1(2).Text
  Printer.FontSize = Val(Text1(3).Text)
  Printer.FontBold = Text1(4).Text
  Printer.CurrentX = Val(Text1(0).Text)
  Printer.CurrentY = Val(Text1(1).Text)
  Printer.Print MS1.TextMatrix(i, 2)
  Printer.CurrentX = Val(Text1(0).Text) + 30
  Printer.CurrentY = Val(Text1(1).Text)
  Printer.Print MS1.TextMatrix(i, 3)
  Printer.NewPage
Next
Printer.EndDoc
Exit Sub
End Sub