Is it worth replacing hard drive?
My iMac is six and a half years old and it's been fantastic. After going through your Answers section I think my HD is failing. I'm hearing clicking sounds and when I put it to sleep for awhile it won't wake up I have to reboot it which usually takes about three reboots to actually reboot it. I also see the folder with the ? in it sometimes.
So, my question is, is it worth putting in a new HD on a computer this old or should I just buy a new one?