Finally, managed to get Ubuntu 12.04.2 LTS off the laptop and installed Fedora 18 on it. No problems with Fedora on the Z580, except that Wireless LAN disconnects very frequently and the Bluetooth does not connect to my phone. Now have downloaded Xubuntu 13.04 and will try that out to see if the Ubuntu 12.04.2 LTS ACPI issues do not occur, the random booting black screens do not occur, and we over the Fedora 18 wireless LAN and bluetooth issues.
Re: Lenovo W530