[RESOLVED] Really strange bug!

[formlesstree4]

I had this code running for quite a while, thanks to petevick, but suddenly, a weird error happened with this code:

Private Sub LoadNewWord()
        Dim sr As New System.IO.StreamReader(WordList)
        Dim strData As String = String.Empty
        strData = sr.ReadToEnd
        Dim strRecs() As String = strData.Split(CChar(vbCrLf))
 
        MenuItem3.Enabled = True
        Dim Number As Integer = RandomNumber(0, strRecs.GetUpperBound(0))
        Dim word As String = strRecs(Number)
        GlobalWord = word
        Try
            For Each ch As Char In GlobalWord
                PictureBox1.Image = letterImages(ch) 'Right here, the ch is a weird character
                PictureBox1.Refresh()
                System.Threading.Thread.Sleep(speed)
                PictureBox1.Image = letterImages(CChar(" "))
                PictureBox1.Refresh()
                System.Threading.Thread.Sleep(10)
            Next
        Catch ex As Exception
            MessageBox.Show("There was an error with the program. Please restart the program!")
            WriteErrorReport(ex.StackTrace)
            Me.Close()
        End Try
    End Sub

I stepped through the debugger on the function, and as it went over to set the PictureBox, the character was a square, like an invalid character, which makes no sense. The letterImages is a list of lowercase and capital letters, and a space for showing letter change.

Now, what I don't get is why it did an invalid character, when the word list is:
"one two three four"
and the string is splitting at the spaces. Any clues?

EDIT: I stepped through again, and noticed it wasn't removing the spaces before the words, and I can't seem to get it to do that, any help?