I also had problems using the installer on my Core 2 Duo, Dell D620. I don't remember the exact symptoms because it was a while ago. One interesting thing to note was that I think I tried to install four times and on the fourth time it succeeded. The three first attempts all failed at different stages and with different outcomes, I think at least once the machine froze completely, I don't remember the details.
This was the release candidate of Edgy and on a Core 2 Duo 2.00 GHz, Nvidia Quadro graphics, bluetooth and Intel wireless. -- edgy installer randomly hangs on Core 2 Duo, Dell D620 https://launchpad.net/bugs/62986 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs