I have a Acer Aspire One Happy2 Netbook and I am facing two problems when using Windows XP.
When I boot to Windows XP SP3 Pro, I don't hear anything from my netbook after resuming from stand by or hibernate.
When I plug in a headset, the sound comes from both the headset and the built-in netbook's speaker, but everything is working fine when I boot to Ubuntu 11.04 (both two problems don't occur).