First, I leave my pc on over night. Starting a few weeks ago this started. I would wake up everyday and my pc has restarted by itself. I was up late one night and noticed it was windows update causing this, why is it doing it every single night and how to I get this to stop? I feel like I've had nothing but problems with it.Second thing is, about 3 days ago I had a pop up from my ISP comcast that said I could download norton anti virus since my mcafee was expired. I did this and had no problems with it so far. Now since yesterday I can't go on certain websites, Nike.com is one of them, it just shows a black page and thats on internet explorer. I also cannot even get firefox to open at all, and the same thing with AIM. Another problem I've noticed is the windows side bar where you can add the widgets like weather, etc doesn't work, the weather widget shows a white box instead and above my gmail widget it has a little loading icon and says secure.Is there anyway I can fix any of this? Could norton have done something to the firewall or something I wouldn't know about?I'm running windows vistaThank youSorry about the big paragraph but for some reason when I post the message it all joins together instead of having 2 seperate paragraphs. After editing as well.