My dell xp system has developed a new glitch. Overnight, or after a number of idle hours, it won't seem to awaken. I can click on any program and move my mouse around, but after clicking on a program, nothing happens. If I try to restart, it seems to want to respond, but the little hourglass comes up next to my cursor and nothing happens. I have to do a forced, hard, reboot to get things running, and then all is fine until another long period of inactivity. Any ideas?