I have recently upgraded to Feisty (linux-image-2.6.20-9-generic) and the frequency of these messages is greatly reduced, although they are not eliminated completely. I intend to take a look at the Linux Firmware Kit suggested by Cristian above, but something has clearly changed in the kernel that has at least reduced the severity of the problem.
I note that when I boot, I see the message "MP-BIOS bug: 8254 timer not connected to IO-APIC" before the usplash screen. See attached dmesg output. ** Attachment added: "dmesg output on Acer Ferrari 4005 WLMi with Feisty" http://librarian.launchpad.net/6666568/dmesg.txt -- APIC error on CPU0: 40(40) https://launchpad.net/bugs/66900 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
