Hi I made this silly little program I call YAD ( You Are Dreaming ) for Windows-XP.
when you run it, you will see the words "You are dreaming" moving across the screen, it's small and gray so you may not notice it at first, it should be near the top of the screen.
To change the Y location of it you can edit the yad.ini file, set a different location, and run the program again.
to stop the program, double click on it ( it's a little difficult to hit it because it's a transparent window, so you may need to double click several times ) or use the Task-Manager to close it.
The purpose of the thing is to subliminally put it into your head that you are dreaming.
you can get it at YAD
and the very messy source code at YAD Source

have fun!