Older Protocol?

jizzles

i get this message when joining a server it saying im using an older protocol 46. its been workign fine the last couple of days. <!--emo&::sentry::--><img src='http://www.unknownworlds.com/forums/html/emoticons/turret.gif' border='0' style='vertical-align:middle' alt='turret.gif'><!--endemo--> <!--emo&::gorge::--><img src='http://www.unknownworlds.com/forums/html/emoticons/pudgy.gif' border='0' style='vertical-align:middle' alt='pudgy.gif'><!--endemo--> <!--emo&:D--><img src='http://www.unknownworlds.com/forums/html/emoticons/biggrin.gif' border='0' style='vertical-align:middle' alt='biggrin.gif'><!--endemo-->