

I backed up to an external HDD with Time Machine no more than a few days ago, but I'd like to retrieve the data written since then if at all possible. Does anyone have any suggestions? I don't have a warranty or support plan anymore, so I'd like to try to resolve this myself if at all possible. Is this a failing/failed hard drive issue? (And, if so, can I recover any of my data?) I've never changed the hardware on this comp except for a battery replacement last year.
MAC HANGS ON BOOT WITH SYMBOL INSTALL
I CANNOT BOOT FROM THE INSTALL DISC - if I try to start the computer with the disc in the drive, it just makes a kind of periodic pulsing noise for a while, then ejects the disc. It seems to have let me clear the NVRAM/PRAM, but it doesn't seem to take any other keyboard input - it won't, for example, do a Safe Boot, no matter how long I hold the Shift key, nor move to any screen except (when it eventually loads) the Apple logo. I've tried as many of the steps from Mac's support site ( ) as I can. It hangs at a blank gray screen for a very long time, then goes to the Apple logo/spinning "gear" screen, where it stays indefinitely (I left it up for a few hours yesterday). When I reconnected the power and started it up again, it wouldn't boot properly. I unplugged it and let the battery run down to zero. Yesterday, the screen simply froze and wouldn't respond to CMD+OPTION+ESC or any input, including power button. Over about the last month, it's been running significantly more slowly. I have a Macbook Aluminum from 2008, installed OSX 10.6.3 disc last year when everyone stopped supporting 10.5. Apologies for not being a forum denizen and just creating an account to post this issue.

Preamble: I was an active member at one time, but it's been several years, and I can't remember my username, so new one here.
