How do you check for dead pixels and backlighting?

[MBrown]

?

 

[2Xtreme21]

Google.

 

[JBT]

To check for dead pixels look at your monitor. If you can't see them in every day use don't worry about them. To test for backlighting turn off your lights.
EDIT: Also change your screen back ground to black.

 

[Saga]

Google for Dead Pixel Buddy. It's the best.