<ASPNetSpell:SpellTextBox ID="SpellTextBox1" runat="server" Style="height:auto"
Width="553px">
By setting Style="height:auto" for any SpellTextBox - it will automatcially exaand (gow) to fit the content within it. It will no longer display vertical scroll bars.............. Just keeep typing... you'll see
</ASPNetSpell:SpellTextBox>