I have a macbook, 2.16ghz core 2 duo, with 1GB apple brand ram in it. Recently the machine has been giving me one long beep upon pressing the power button. The apple knowledge base says this is the computer not finding ram but after the beep the computer continues to boot with no problems. I have tried swapping the ram with another set of ram I have, as well as simply re-seating the ram. Furthermore, this only happens about one in five times I boot the machine. Has anyone else experienced this? Any help would be appreciated.