I think its ad there and those who have ad blocker see it as "aaaa' (something that would show up incase ad is blocked).I checked with Maxthon,it doesn't show up there.I then checked with IE but without ad block or related and it shows ad where u mention abt "aaaa".Either it has gone or may be thats the explanation I gave.I never noticed it earlier since Maxthon had setting to block and not show up any text or code there insted.
mskprathap