I have had my laptop for two years with no problems but lately either the LED will go crazy and I'll be forced to manually turn it off or when I turn it off voluntarily, it will not reboot. The A indicator flashes and then the computer turns back off. Someone at dell told me I needed to replace the memory but will that fix my problem? How long is memory supposed to last? Is there something I can do to prolong the end of my memories life until I recieve the new memory in the mail?