Hi, I have a problem with my MacBook 13'3 (late 2009) which can't turn on. Today I installed new Lion OS and Ubuntu... When I press power button diode is white, but display is still black, fan is running. When I reset SMC sometimes MacBook turn on, but after shutdown and next run diode is blinking for 3 seconds, I have one long beep signal and no other effects (display is black etc.). On power supply diode I have orange colour, so it's fine I think (battery isn't fully loaded). I replaced RAM (now I have 2x 2GB Kingston 1066, but it works fine for 2 months). I tried with one RAM in differents slots and withou Hard Drive but I see the same effects. My warranty expired 4 days ago... Cheers, Update: MacBook turn on fine and works without any problems (I checked stability in OpenGL 3d application and is ok) every each 4 tried. After shutdown I have as I said before when my MacBook is running diode is shine for ~2 seconds, next is fast blinking for ~2 seconds, and after it is shine, but I have long one beep signal when diode is back to shining. Now I must 3x power on and power off and after 4th power on MacBook will running and it's working fine. Maybe are You know how can I solve this problem?