Mental ray photon emission problem..

mga sir help naman.. im using the mental ray in max ( max 2012 ).. after ko iimport from the sketchup.. after texturing.. everytime i would enable the GI it would stop. hanggang 82% lang ung photon emission nya.. then this message shows.. "no photons stored after emitting 1000000 photons from light"... i dont know what is the problem is it in my scene or material? or a computer problem..

enable your GI under sa indirect illumination po. then try to enclosed your scene sa loob ng sphere, lagyan mo ng base lighting at ilagay mo sa correct position ang lights.