I have just reinstalled windows XP and have all the hardware drivered and all the available updates and service packs from microsoft. The problem is when I am connected to the internet for programs theat require a connection, windows shuts down (but not the computer). It is like the monitor is on standby but if i press any key or move the mouse there is no reaction. Yhe only way of getting windows back is by pressing the reset button on my tower. Is this a crash of some sort or is windows still running in the background. The first time I saw this, I restarted my computer and got a message saying it was my graphics card that could have caused the problem. I have tried 3 different drivers (1 from microsoft, 1 from nVidia) and I still get the same problem only now I no longer get an error message. This happens every time even if I format my hard drive and do a clean install. This is getting very frustrating because i can't leave my computer unattended downloading. Is there anyone who knows how to sort this problem