Ubuntu 11.10 Installer crashes during clean install.

[coolykoko]

my install system is an HP dv6t-4000 Notebook
Sandy Bridge
2nd Gen i7-2720QM
NON-switchable graphics. Only ATI 6570 (device ID: 68c0)
built-in fingerprint scanner
touch-screen (unsure but lead to believe by Everest on windows that it's by Wacom)

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: ubiquity 2.8.4
ProcVersionSignature: Ubuntu 3.0.0-12.19-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
ApportVersion: 1.23-0ubuntu2
Architecture: amd64
CasperVersion: 1.285
Date: Fri Oct 7 15:15:59 2011
LiveMediaBuild: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20111007.1)
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)