I have a 2.88 I7 model with Nvidia graphics and it randomly kernel panics or freezes in random spots or does the 3 beep chime when running. It is a really nice laptop for at home use or movie watching but it makes itself unusable when it crashes for about 15 minutes. Then it Will either fail to boot and just have the front white light on or it boots and runs for a few seconds before either artifacting the screen and freezing or kernel panicking. I tried the graphics switching apps and it still overrides it and runs the D-GPU or it may be still on integrated. It usually freezes and prevents me from checking which one its using. Are there any solutions to fixing this or is this laptop toast?