InDesign/Colour help

I'm trying to make something in InDesign CS2.

I have the background completely black. As black as black can be, however when I export it it is a grey sort of colour.

Where am I going wrong?

What color setting is your document? Is it RGB or CMYK?

Go to your preferences and change the appearance of black.

Appearance was already Rich Black, hence why I couldn't work out why it wasn't displaying correctly! Couldn't find the CMYK/RGB options but did eventually!!

Sorted eventually though, cheers fellas.