My netbook ran a batch of updates yesterday including a new kernel I think ( 2.6.24-27-lpia) and the result is no sound (everything else seems to be fine); it doesn't appear to be able to find any sound devices. Booting to the previous kernel ( 2.6.24-24-lpia ) appears to solve the problem, but of course, this isn't an ideal solution.
You should think this cannot happen twice, but it has and I can confirm this. Will install easypeasy 1.6 if there is no fix for this problem. I am testing the beta installed on usb-memory and it works good.
As a temporary fix I've changed the default kernel in GRUB's menu.lst. (I don't know enough about this to recommend it but it worked for me.)
I've noticed that Update Manager has a greyed out update that won't install, linux-image-lpia. Using Synaptic I see that the installed version is 18.104.22.168.26-0netbook1 and there should be a version 22.214.171.124.29-0netbook1, but when I try to install (using Synaptic) I get the error message
Depends: linux-ubuntu-modules-2.6.24-27-lpia but it is not installable
Yesterday I have installed easypeasy 1.6 (= Ubuntu Netbook Remix 10.04 + codecs, flash, Skype, Picasa ...). Everything worked "out of the box". I only installed sun-java6 and ttf-mscorefonts-installer packages additionaly. Battery time not tested yet.