Object was unloaded error

[mikeycorn]

Private Sub cmdLoadChapters_Click()
  Load frmChapters
  frmSplash.Hide
  Unload Me
End Sub

In the frmChapters Form_Load

  Me.cdbPath.ShowOpen
  FullPath = Me.cdbPath.filename
  If Len(Dir(FullPath)) = 0 Or Len(FullPath) = 0 Then Unload Me: Exit Sub

When I cancel out of the cdb on the second form, (triggering the Unload Me in the last line) how come I get an 'Object was Unloaded' error from the first line of the first form that loaded it?