Hi I have a similar problem.
I have a problem with my Ubuntu 10.10. I had problem with installation too. If I boot live cd my system after login into desktop freezes after 10-15 seconds. I had to go in installation process and hit F6 and check : noacpi=off, noapic, nolapic, edd=on (Im not sure if all otions should be check). After this I could install ubuntu(no freezes). After installation process I had the same problem, after 10-15 seconds system freezes (I have to hard restart the system). I discoverd if I go to recovery console and hit rootconsole>su predrag>startx my ubuntu start up with out any problems. I think that is not problem with Compiz becasuse I run Ubuntu with/without it. In recovery console mode I have turn on Compiz and everything is fine. On my PC I have many times installed Ubuntu and everything goes good. I changed only my graphic card from Nvidia to Ati. Maybe this is a problem?(I dont think) Tell me what I should send to you and I do it. My PC configuration in attachment. ** Attachment added: "hardinfo_report.pdf" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/659705/+attachment/2016279/+files/hardinfo_report.pdf -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/659705 Title: hard lock (hang) after a few minutes with APIC enabled -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs