Have you had a look at the Ubuntu Netbook Remix (UNR)? Don't know if
that's likely to circumvent the odd Ubuntu issues you're seeing ...
I bought an Acer Aspire One, and am getting somewhat frustrated with
the Linpus Lite that's loaded on there (I've got rid of the custom
interface, but I think the underlying xfce might be "tweaked" ...).
I've been told that loading the UNR onto these slows these (AA1)
machines down, but I'm guessing that a bunch of the stuff is in ROM
(boots up way too fast to all be on the 160Gb HDD). From what I've
read, the UNR is supposed to be pretty much the best netbook option
out there, however.