I have Ubuntu 12.04 LTS installed on Dell Vostro laptop. The device has also Windows 7 and I set it as dual boot.
Recently, I found that when I put the laptop to sleep, the hard disk refused to resume and there are serious clicks.
Now, I hear these clicks when the laptop is booting and it refused to boot. I shut it down and try many times until it boots. Once the device is working, I don't hear any clicks.