ARRRRRRRRRRRRRRGGGGGGGGGGGGGGHHHHHHHHHHHH!

My computer keeps freezing up on me. Pages take forever to load. I cannot play my games on pogo.com because my screen freezes up there and I have to reboot! Fuck!!!!!!!!!!Yes, I have a great antivirus program updated every day. Pages are slow to load, and I have to reboot often. Any suggestions would be great.