Textbox multiline repeating words when wrapping

I have a Textbox with TextMode=multiline so users can enter carriage returns and wrap=true.
when the users enter enough text to wrap 2 or more lines, the last 1/3rd of the line gets repeated on the next line.  I've checked the record in the database, debugged and watched the value get set to the text in the textbox and even viewed the source after the page was rendered and all show the text correctly.  It's just the rendered aspx page that shows the duplicate words from one line to the next
<asp:TextBox ID="tbSituation" CssClass="IAtextbox" runat="server" Wrap="true" TextMode="MultiLine" ></asp:TextBox> It's not just one box, it's happening on all my textboxes.  The CSS property is also really basic: .IAtextbox {
width: 550px;
height: 80px
}
 
I've also tried it without the CSS property
< ...