do you have all your lights on the plants/ I have read that for a 1000watt HPS 2 feet is to close. of do you use the MH for the veg? wilting can be caused by the lights. did you try moving them further away?

just seems to me like heat could be an issue kinda like sunburn on us. sun is millions of miles away but we still get burned. know what I mean.

you have any pics of your setup?