xubuntu 13.04 installer crashes always during installing on Dell XPS M1330

[Lauri Laanenurm]

OS: Xubuntu 13.04 _Raring Ringtail_ - Alpha amd64 (20130303) - booted from 4GB USB memorystick
Installer crashes every time after copying all files, when trying to install on a DELL M1330 laptop with a SSD (have not tried with a regular hdd)

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: ubiquity 2.13.12
ProcVersionSignature: Ubuntu 3.8.0-9.18-generic 3.8.1
Uname: Linux 3.8.0-9-generic x86_64
ApportVersion: 2.9-0ubuntu2
Architecture: amd64
CasperVersion: 1.330
Date: Mon Mar 4 09:18:00 2013
LiveMediaBuild: Xubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130303)
MarkForUpload: True
ProcEnviron:
 TERM=unknown
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Brian Murray (brian-murray)]

Traceback:

Mar 4 07:08:49 xubuntu /plugininstall.py: Exception during installation:
Mar 4 07:08:49 xubuntu /plugininstall.py: Traceback (most recent call last):
Mar 4 07:08:49 xubuntu /plugininstall.py: File "/usr/lib/python3/dist-packages/apt/progress/text.py", line 146, in fetch
Mar 4 07:08:49 xubuntu /plugininstall.py: line += (" [%sB]" % apt_pkg.size_to_str(item.owner.filesize))
Mar 4 07:08:49 xubuntu /plugininstall.py: UnicodeDecodeError: 'utf-8' codec can't decode byte 0xa0 in position 1: invalid start byte
Mar 4 07:08:49 xubuntu /plugininstall.py: