I just got a new Dell with Windows XP. On my old one with Windows ME, I used to be able to hit ctrl/alt/delete to shut down if it didn't work the normal way. But now when I computer freezes, pushing that brings up the box to end programs or but I can't always restart or shut it down and it remains frozen.  Does pushing ctrl/alt/delete twice not automatically restart the computer on XP??

So how do I restart, am I supposed to just push the power button?