Yeah, that was my initial idea too, I tried to use the version from 3.4f (which works fine), but they are the same. The emerge didn't make any difference, So I don't know.
HP tx2500: Sabayon
Acer Aspire One 9": ubuntu 9.04/backtrack/linuxmint mix-mess (not multiboot)
Acer Aspire One 10": +1