ubuntu 7.04 on asus m2400 notebook

[shily escape]

 I got a serious problem on my notebook asus m2400,with Ubuntu
7.04.Itspower management  and sound card were not recognized correctly
by my OS
which was installed with a configuration of acpi=off.I've tried to update my
bios from 0206 to 0208,but it would still hang if I didn't set
acpi=off.Doesanyone have some idea about these power management  and
sound card driver on
Ubuntu?

thanks a lot.
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