ubiquity crashes on webcam access

Installing on and older Asus z62f laptop with built-in webcam. Happens on every laptop of this model, so not a faulty hardware issue.

Tried disabling the webcam with both 'rmmod uvcvideo' and 'ubiquity --no-webcam' to no avail. rmmod reports uvcvideo does not exisit in /proc/modules and ubiquity waits for a few seconds before returning the to command prompt without opening anything whatsoever.

When ubiquity is run normally (either from the terminal or desktop) it procedes normally until after the user information/password dialog. Upon continuing from this page, the picture/photo/avatar dialog opens for a split second and ubiquity exits without displaying an error.

This happens with all flavors of Ubuntu 12.04 LTS.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: ubiquity 2.10.20
ProcVersionSignature: Ubuntu 3.2.0-29.46-generic-pae 3.2.24
Uname: Linux 3.2.0-29-generic-pae i686
ApportVersion: 2.0.1-0ubuntu12
Architecture: i386
CasperVersion: 1.315
Date: Fri Nov 23 11:16:12 2012
InstallCmdLine: file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
LiveMediaBuild: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release i386 (20120817.3)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)