how dou you know it is not getting power all the time?
the green led is not always supposed to be lit and it is not supposed to spin the cd all the time either....just stating obvious, no hit/no foul!
pull the molex connector plugged into back of drive off and make sure that all metal "plugs" are even and at same height/not pushed down in.
make sure pins in back of drive itself are not bent.
Good Luck!
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I like the new avatar meese!