sv1cec,
Very strange. It doesn't seem to be happening on my site. Not sure what could be causing it.
Try this and let me know if it still happens:
In the QE template find:
Code:
<if condition="$bbuserinfo['signature'] != ''"> <label for="cb_signature"><input type="checkbox" name="signature" value="1" id="cb_signature" tabindex="1" checked /><span class="smallfont">Signature</span></label></if>
Replace it with:
Code:
<if condition="$bbuserinfo['signature'] != ''">
<input type="checkbox" name="signature" value="1" checked /><span class="smallfont">Signature</span></if>