Has there been any hardware peripherals or software packages recently added to the system? Before shutting down, press CTRL+ALT+DELETE quickly, and you should get a Close Program dialog box. For every item in this box EXCEPT for Explorer and Systray, click it and click End Task. The box will disappear each time you click End Task, so you will need to press CTRL+ALT+DELETE again to bring it back up until all other programs are gone. You may also want to wait approximately 10 seconds between clicking End Task and pressing CTRL+ALT+DELETE again to make sure another box does not appear, and if it does, click End Task again.

Once everything is gone except for Explorer and Systray, you can proceed with shutdown. You can also (after restarting) eliminate one program in this box, then attempt to shut down. If that does not work, next time end task on two programs, and so forth. This should help narrow down any possible software running in the background that could be causing this problem.

i get the same problem. and thats alot of work to shut it down every time.

I agree! They should either fix the problem or replace the computer! What do you think?