Odd message when loading green_saver

[Joshua Isom]

Whenever I load up green_saver to turn off the monitor when the 
console's inactive, I get a message on the console saying "kldload: 
Unsupported file type".  The module still loads and is active, it all 
works, but there's still that message that makes it seem as though it 
fails.  Does anyone happen to know why or how to get rid of it?  As far 
as I know it's harmless since green_saver does work, but it does seems 
odd.