Processing Help

[pfritzd]

Greetings All,

I have a picture here that I took at a wedding. There was very low lighting. I shot the picture using my d70, iso 400, don't remember the shutter speed (think 1/60), in RAW format. I used PS CS to open it, and I got this



2 things ...

1) how can I clean up the graniness (don't want someone to do it for me, rather to walk me through the cleanup process ... if this picture can be salvagable)
2) why did this graniness only appear in a handful of pictures rather than in most?

thanks :)