message invalid RR type 'NS' in additional section after upgrade

[David JULIEN equipe MINDS/SSIM]

Hello,

I would like to know if multiple cnames is still implemented (and
accepted) in bind 8.3.3.

Il have just upgraded from bind 8.2.3 for security reasons, and I have
this message permanently in my logs

invalid RR type 'NS' in additional section

I have multiple cnames set. Could this probleme come from that ?

Any help would be greatly appreciated.

Thanks


David