I have no problem with my AOA mODEL ZG5 on the label on u.s. computer.
You will find a serirs of tweaks worth knowing on the Acer Aspire One Forum:
http://www.aspireoneuser.com/forum and
https://help.ubuntu.com/community/AspireOne and http://www.aspireoneuser.com/

I still have the Linpus installed but I don't use it. This is Natty Ubuntu
11.04 with Unity and is superb!