Completely switch off validation

[tomatedesign]

I've found that snippetmaster has occasion to make some radical changes to code and page content outside of the desired edits. Just changing one word of text butchers a whole page making it completely unusable. SO is there some way to stop this happening? I've tried the various validation settings but things still seem to get messed up.

I'd like for it to just edit the text the client wants, no validation, no messing around with php or anything else - is that possible?

examples of things it messes up:
 
</body>
<!-- InstanceEnd --></html>

becomes

</body>
</html>

- making dreamweaver templates un-updatable

<?php
$pagetype="agents";
echo"<ul>\n";

becomes:

<br />
<?php
$pagetype="agents";
echo"
<ul>
   n";

which obviously breaks the whole page

So yeah - advice would be nice! Sorry if the answer's already here - I couldn't find it with a few searches.