Computer Help! Omfg!

[V8killimports]

Seriously though.. can someone help me with my shitty ass computer? I have more and more problems as the days go on.. for example, when I try to go to certain sites I get an error. And it ALWAYS happens. When I go to weather.com it starts to load then I get an error. When I go to yahoo.com it loads fine, but when I try to do a search it gives me an error.. yet I can use google just fine. WHAT THE FUCK. And I KNOW it's fucking with battlefield 2 and other games. It says shit like Internet Explorer has encountered an error and needs to close.. I have Norton 2005 antivirus/spyware thing, as well as windows firewall blah blah blah... and I have no idea what the shit to do.