Well in that case Im moving this to the VB.NET forum, that way it can get the proper attention. In the mean time heres an example of the SelectionFont, SelectedText and SelectedColor properties of the RichTextBox
vb
Private Sub WriteTextToRichTextBox()
' Clear all text from the RichTextBox;
richTextBox1.Clear()
' Set the font for the opening text to a larger Arial font;
richTextBox1.SelectionFont = New Font("Verdana", 16)
' Assign the introduction text to the RichTextBox control.
RichTextBox1.SelectedText = "Lets make this text in Verdana, and in Green" + Environment.NewLine
'Set the color
richTextBox1.SelectionColor = Color.Green;
' Set the Font for the first item to a smaller size Arial font.
richTextBox1.SelectionFont = New Font("Arial", 12)
' Set the color of the item text.
richTextBox1.SelectionColor = Color.Red
' Assign the text to the bulleted item.
richTextBox1.SelectedText = "Here is some more text that is Arial and Red" + Environment.NewLine
' Apply same font since font settings do not carry to next line.
richTextBox1.SelectionFont = New Font("Tahoma", 12)
richTextBox1.SelectionColor = Color.Orange
richTextBox1.SelectedText = "And one last bit of text in Tahoma and Orange" + Environment.NewLine
End Sub
Hope that Helps