crash video

hi i have a problem,
I have a macbook white unibody mid 2010,
processor intel core duo 2.4 ghz,
video card nvidia geforce 320m 256mb,
dd3 ram 1033 SoDimm 4 + 4gb 8gb total,
hardisk 750gb 7200 rpm,
mixvibes Cross 3.2.1
controller Numark n4,
I bought all the video in mp4 h264 640x360 audio m4a,
I've imported all of the collection,
I have analyzed,
I also have memories clean installed to control the ram,
now my problem is when I load a video deck in the music stops for a second,
by controlling the ram as time goes on I realize that down,
down until you get to 200mb,
and the Cross crashes,
I also tried to change the latency,
I tried to turn off the wifi bluetooth,
I closed all apps,
I tried with maverick,
then even with a mountain lion,
nothing but the problem remains,
tell me how I can fix thanks.
I have a macbook white unibody mid 2010,
processor intel core duo 2.4 ghz,
video card nvidia geforce 320m 256mb,
dd3 ram 1033 SoDimm 4 + 4gb 8gb total,
hardisk 750gb 7200 rpm,
mixvibes Cross 3.2.1
controller Numark n4,
I bought all the video in mp4 h264 640x360 audio m4a,
I've imported all of the collection,
I have analyzed,
I also have memories clean installed to control the ram,
now my problem is when I load a video deck in the music stops for a second,
by controlling the ram as time goes on I realize that down,
down until you get to 200mb,
and the Cross crashes,
I also tried to change the latency,
I tried to turn off the wifi bluetooth,
I closed all apps,
I tried with maverick,
then even with a mountain lion,
nothing but the problem remains,
tell me how I can fix thanks.