Here's a good trick that works, because I tested it today.

Ever want to change that screen that comes up when you're shutting down saying "It is Now safe to turn off your computer"?
Well, it's easy.
First, go to "my computer", then "c", then "Windows".
Now go up to the menus at the top and click on The View Menu, drag down to 'Options'. Then go to the 'View' tab, and click the "Show All Files" box. This will show you all your hidden and read only file. A tip - DON'T mess with any except the two I'm going to list, these are often important.

BUT
for some reason, Microsoft decided to make that little shut down screen a hidden system file.
Now check out your list of files. Make things easier by clicking on the 'View' menu, then clicking 'Details'. Now click 'Type' at the top of the data columns. This will arrange the files by type.
Toward the bottom are the system files. There should be two with the names of "logos.sys" and "logow.sys"

OK, good.
NOW
go to your basic Paint program. (The one in Accessories), go to "file", then "Open", then type in "logos.sys" or "logow.sys" and open the sucker up.
There ya go, the shut down screens right there to mess with...edit them with the paint program, have some fun, then save em...and that's that.

-Grim