My XP Pro computer is about 2 years old. Up until about 4 months ago, "turnoff" would shutdown and then turnoff the computer. Then until recently, "turnoff" would shut down to a window that said "It is now safe to turn off your computer" but I had to turn off the computer manually by pressing the power button and holding it for 5 seconds. Recently, "turnoff" now stops at the window "windows is shutting down" and I get an audible "click" sound from the computer but I must still manually turn it off. I have been unable to find any solution that restores the original setup. I have made no significant changes to software or hardware. I am in the Colorado mountains with a very slow on line connection speed with less than 10k via modem and I use IE & OE 7. This combination results in frequent phone line cutoffs and IE or OE problems and thus frequent reboots. Local techs have been unable to solve any of these problems and I don't know if they would effect shutdown. I have plenty of HD space & 512 Ram.