Heres a function I wrote that is the opposite of IsNumeric. It checks to see if a string is only Alphabetic characters.

VB Code:
  1. Function IsAlphabetic(sString As String) As Boolean
  2. Dim GetChars As String
  3. Dim i As Integer
  4.    For i = 1 To Len(sString)
  5.       GetChars = Mid(sString, i, 1)
  6.       Select Case Asc(GetChars)
  7.          Case Asc("A") To Asc("Z")
  8.          Case Asc("a") To Asc("z")
  9.          Case Else
  10.             Exit Function
  11.       End Select
  12.    Next i
  13.    IsAlphabetic = True
  14. End Function

Use it Like

If IsAlphabetic(text1) then Msgbox "Only Letters are in text1"