cotyledon leaves dying/ yellowing

Here's a picture...tell me whats wrong... its 17 inches from a 150W HPS lamp. Soil. Just miracle grow as a nute and a week into flowering.

Is it normal for the cotyledon leaves to start dying and falling off as the plany begins to have new growth. ?

YEah its fine

OMG, what do you expect anyone to say from that pic??

Hello,
One of my friends plants is drooping ALOT. There is one other plant in the same room with this one. It looks fine. Any Ideas whats going on? Thanks.

http://i711.photobucket.com/albums/ww114/Tweak_2009/IMG_1616.jpg

http://i711.photobucket.com/albums/ww114/Tweak_2009/IMG_1616.jpg