Norton 360 denying access to Internet Explorer

My Norton 360 was working just fine until this morning. The only thing is it wouldn’t let me open up my WildTangent game console. So I contacted WildTangent and they told me it had to do with the firewall not allowing me to open the console. So I went to the firewall and set it to allow access to the game console. After I did that, it would no longer let me access Internet Explorer. I tried to open it and it would freeze my computer. I went to the security history on Norton and it said that it was denying access to IE. I even restarted my computer and it was still denying it. So I reset my firewall thinking it would work and now it’s even worse. The computer is super duper slow like it’s low on memory, but I know that’s not the case because I just put in 1GB. And it’s still denying IE and I can’t even get it to close. Can anyone help?