I also added options snd-hda-intel model=3stack to the bottom of
/etc/modprobe.d/alsa-base.conf and the problem was fixed.
Link generated by alsa-info.sh before I have added that new line:
http://www.alsa-
project.org/db/?f=12490beb76d4796e72a24cb6f5665839d62d773a
My computer is a Dell
I'm also having the same trouble.
I upgraded from version 7.10, using the Ubuntu 8.04 alternate CD.
[EMAIL PROTECTED]:~$ firefox
preloader: Warning: failed to reserve range -6000
preloader: Warning: failed to reserve range -6000
err:dosmem:setup_dos_mem Cannot use first