Nortin 2010 problem

Hey guys/girls.

 

Dunno what happened, mum must have loaded a new norton or it updated to the latest version.

 

Ever since this 'update' my ping has gone through the roof, and its constantly lagging, I am Australian, Ping on cs:s servers i play on 10-20, now its around 300-400? It goes up and down constantly. Any suggestions?