i'm using chakra as main system right now (i just can't figure out why sabayon is SO slow starting kde, but that's another story). I'll be glad to see this LO issue solved becuase i really like sabayon's entropy and i would like to use it as my main box.
I used Chakra in March last year for changing from Kubuntu to another distro.
My experince was, Chakra is fast due to that seems to be a KDE distro only, with less overhead.
But also, there was no good hardware support (e.g. I couldn't do hibernate or suspend to disk) Then it was not easy to use the package installer. Last point is, the forum was not really helpful (too few members).
I had same problem like you with last OL version 3. But after installing version 220.127.116.11, I could start presentation without crash. I have a (disabled) NVidia GT630M and use only the build in Intel card (no idea, which type).
I did only activate Limbo repo and installed LO 18.104.22.168 package, then deactivated Limbo repo again, and now LO works.
Maybe, because you begin to use Sabayon, consider to download latest KDE Daily Build with date 10/03/2013, here:http://mirror.de.sabayon.org/iso/daily/
and install that one... I've attached the German mirror as example. But it should support all languages. Look for the one, you need.
Hope to help you.
-Linuxfluesterer (I love KDE ...)