No error messages.
I just heard the hard drive clicking less frequently as it scanned certain files which I guess were larger, it was intermittent so I left as is. Then it froze, crashed and I had to shut down. No error messages, no BSOD and I am still running Vista Ultimate.
This actually gives me a good excuse to jump to Windows 7 thinking about it. Maybe.
I was thinking that the hard drive may have some bad sectors, but chkdsk didn't return any major problems iirc.
I've had the same M1330 for the last 3 years now, and in short it has:
2.00Ghz Core 2 Duo
2GB RAM
160GB HDD
Geforce 8300M
Either way about it, I'm in the process of backing most of my other stuff up and ordered a 500gb hard drive to hopefully clone on to.
Just trying to find all my user preferences and stuff because some are saved in my program files folder and others in the appdata folders...which is a massive pain in the arse.