Monitor on my Nikon D90 will not come on?

The monitor on my Nikon D90 will not come on?

Busted LCD? Have it checked at the store you bought it from or go straight to the Authorized Nikon Service Center in your area.

I have no clue how experienced you are, so I assume you're not.
You might want to start by reading your manual. Perhaps you simply have the display turned off.

Use live view.