DW MX screwing up code

I have noticed that when ever I change a property of the textarea form element
visually, that dw mx will put the </textarea> tag bellow the <textarea> tag and
its contents for example

<textarea name="resaddress" id="resaddress" class="InputText"><% = resaddress
%>
</textarea>

this has the undesirable side effect off making the textarea think its full of
tab and space characters. Does anybody know a way around this ?