I have exactly the same problem. I have a P IV 3.4 GHz, and I'm using Edgy with 2.6.17-10-generic.
Other interesting thing to notice is that, after starting my machine, if I don't log on to my account and I try to do shutdown, it will work flawlessly! Carlos Vicente -- Shutdown still doesn't turn off my computer https://launchpad.net/bugs/44008 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
