Kernel Oops - e to handle kernel paging request at f84c71e0; EIP is at InitializeDisableFlags+0x3f/0xd0 [fglrx]

It said that there's a kernel problem and that system wasn't secure

ProblemType: KernelOops
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-8-generic 2.6.38-8.42
Regression: Yes
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
NonfreeKernelModules: fglrx
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Annotation: Your system might become unstable now and might need to be restarted.
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: zlatan 1402 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'SB'/'HDA ATI SB at 0xfe024000 irq 16'
   Mixer name : 'Realtek ALC888'
   Components : 'HDA:10ec0888,1458a002,00100001'
   Controls : 38
   Simple ctrls : 21
Card1.Amixer.info:
 Card hw:1 'HDMI'/'HDA ATI HDMI at 0xfdffc000 irq 41'
   Mixer name : 'ATI R6xx HDMI'
   Components : 'HDA:1002aa01,00aa0100,00100100'
   Controls : 4
   Simple ctrls : 1
Card1.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Mon Apr 18 12:39:41 2011
Failure: oops
Frequency: This has only happened once.
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta i386 (20110413)
IwConfig:
 lo no wireless extensions.

 eth0 no wireless extensions.

 ppp0 no wireless extensions.
MachineType: Gigabyte Technology Co., Ltd. GA-MA69VM-S2
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=BAF6FDB3F6FD6FCD loop=/hostname/disks/root.disk ro quiet splash
RelatedPackageVersions:
 linux-restricted-modules-2.6.38-8-generic N/A
 linux-backports-modules-2.6.38-8-generic N/A
 linux-firmware 1.50
RfKill:

SourcePackage: linux
Title: e to handle kernel paging request at f84c71e0
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/29/2008
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F9
dmi.board.name: GA-MA69VM-S2
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF9:bd12/29/2008:svnGigabyteTechnologyCo.,Ltd.:pnGA-MA69VM-S2:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnGA-MA69VM-S2:rvr:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: GA-MA69VM-S2
dmi.sys.vendor: Gigabyte Technology Co., Ltd.