Is your insomnia the result of your computer screen? (And what to do about it if it is)

I've been using f.lux (cross-platform, free) after reading about it on Seth Robert's blog (in his post titled "A Clue About How To Sleep Better").

Here's more about f.lux from Book of Joe:

flux-screen.jpgIn yesterday's Washington Post Health section Greg Linch's reported on how the light from a computer or iPad screen may potentially disrupt the brain's melatonin production and cause insomnia.

He then described an interesting desktop application called f.lux, which "adjusts a computer screen's color throughout the day. During daylight hours, the screen's undertone is the familiar blue. As sundown approaches, it begins transitioning to a warm shade of red-orange. In the morning, it's cool blue again."

"The software application, which launched in February 2009, works with Windows, Mac and Linux.

Is your insomnia the result of your computer screen?