Slow sound sometimes in feisty/amd64

Forgot to say that I tried to reinstall the system a couple of times (yeah, ex-windown guy) but it gave the same result.

This symptom is indicative of a broken AC97 codec, since the rate information it's initialised at is done at module load. Please check with your motherboard manufacturer for a BIOS update. Also investigate possible ACPI issues. Is the symptom reproducible with acpi=off appended to the kernel command line?

Thanks a lot, Daniel. I forgot to say something that could be important, but am not sure: It works perfectly on windows and it worked too on Dapper, and I'm almost sure it worked on the first feisty alphas and/or betas.
I will try the ACPI issue when I have a momment, and will tell you something.

It is reproducible with acpi=off

And there is no BIOS update :-(
When I got time, I'll try to install the x86 version just to check if it is a x64 issue.

OK, now I don't understand anything. I got a problem with my HD about a week ago, some bad sectors made me reinstall the system, and now everything works flawlessly. Another problem I had with the network which I didn't mind much also repaired itself: I had to disable the wifi connection and then enable it again in order for it to work.
Don't understand a shit.

Seems to be fixed on gutsy. Forget my last message, I had erroneously installed edgy instead of feisty. Sorry.

This bug report is being closed due to your last comment regarding this being fixed with an upgrade. For future reference you can manage the status of your own bugs by clicking on the current status in the yellow line and then choosing a new status in the drop down box. You can learn more about bug statuses at http://wiki.ubuntu.com/Bugs/Status . Thank you again for taking the time to report this bug and helping to make Ubuntu better. Feel free to submit any future bugs you may find.