system doesn't boot after activating fglrx driver

After activating fglrx driver on my system and reboot ubuntu won't boot.
Feel free to request any additional info and logs.
Can't provide xorg log related to this bug but I can try reproduce it tomorrow.
I'll provide other details also tomorrow.

$ lspci -nn | grep VGA
02:00.0 VGA compatible controller [0300]: ATI Technologies Inc Mobility Radeon HD 3470 [1002:95c0]

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: fglrx 2:8.721-0ubuntu7
ProcVersionSignature: Ubuntu 2.6.32-18.27-generic 2.6.32.10+drm33.1
Uname: Linux 2.6.32-18-generic i686
NonfreeKernelModules: fglrx
Architecture: i386
Date: Fri Apr 2 02:58:59 2010
DkmsStatus: fglrx, 8.721, 2.6.32-18-generic, i686: installed
InstallationMedia: Error: [Errno 13] Отказано в доступе: '/var/log/installer/media-info'
Lsusb:
 Bus 002 Device 003: ID 046d:c047 Logitech, Inc. Laser Mouse
 Bus 002 Device 002: ID 0566:3107 Monterey International Corp.
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-18-generic root=UUID=c82202f2-18a4-45f4-8163-3220f0d7b915 ro single
ProcEnviron:
 LANG=ru_RU.UTF-8
 SHELL=/bin/bash
SourcePackage: fglrx-installer
dmi.bios.date: 12/02/2005
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F3
dmi.board.name: C51-MCP51
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.type: 3
dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF3:bd12/02/2005:svn:pn:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnC51-MCP51:rvrx.x:cvn:ct3:cvr:
glxinfo: Error: [Errno 2] Нет такого файла или каталога
system:
 distro: Ubuntu
 codename: lucid
 architecture: i686
 kernel: 2.6.32-18-generic

---
Architecture: i386
DistroRelease: Ubuntu 10.04
DkmsStatus:
 fglrx, 8.721, 2.6.32-19-generic, i686: installed
 fglrx, 8.721, 2.6.32-18-generic, i686: installed
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta i386 (20100318)
Lsusb:
 Bus 002 Device 003: ID 046d:c047 Logitech, Inc. Laser Mouse
 Bus 002 Device 002: ID 0566:3107 Monterey International Corp.
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
NonfreeKernelModules: fglrx
Package: fglrx-installer (not installed)
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-19-generic root=UUID=c82202f2-18a4-45f4-8163-3220f0d7b915 ro single
ProcEnviron:
 PATH=(custom, no user)
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1
Tags: lucid lucid
Uname: Linux 2.6.32-19-generic i686
UserGroups:

dmi.bios.date: 12/02/2005
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F3
dmi.board.name: C51-MCP51
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.type: 3
dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF3:bd12/02/2005:svn:pn:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnC51-MCP51:rvrx.x:cvn:ct3:cvr:
system:
 distro: Ubuntu
 codename: lucid
 architecture: i686
 kernel: 2.6.32-19-generic