http://www.infinn.com/subliminal.html

Subliminal messages are a way of advertising, and it works by 'flashing' messages on a screen for a tiny amount of time. It makes the brain subconsciously absorb the message that was on the screen.

I'm not sure if this will induce a Lucid Dream, but it has been proven to be effective in advertising. In fact, it has been so effective, that it has been banned in the UK.

On the link above you can download a 30 day trial, probably long enough to be effective.
You can change the messages to whatever you want, change the font size, and also have it flashing messages on your computer when you are doing something else (say, going on dreamviews!).

As i said i'm not sure if it will work, but it might.

Any questions or comments please post below