After installing Lubuntu 12.10 the system reboots and shows disk activity but the screen remains blank. This has been problematic on two systems, one a dual boot with Windows 7 and the other a clean install. Both systems have AMD Processors and at least 2GB of RAM. Both systems have use nVidia chipsets, and were able to boot from USB without any problems. The ISO image used to create the Live USB drive had the correct MD5 (I was used to install Lubuntu on the system I'm using at the moment)
I hope I'm not asking a question that has already been addressed, but after searching I was only able to find issues where something was displayed on the screen while the boot was failing.