WLAN doesn't work after turning the wlan card on in Lucid

Description: Ubuntu 10.04 LTS
Release: 10.04

It's an atheros ar5007eg. In Ubuntu 9.10 the card worked fine. The system booted and the atheros wlan card is off. When I turn the card on, nothing happened. In the applet it says "WLAN disabled".
After running "ifconfig wlan0 up" it prints the Unknown error 132. But after running these commands wlan works fine:

rmmod ath5k
rfkill block all
rfkill unblock all
modprobe ath5k
rfkill unblock all
ifconfig wlan0 up

I attached the Logs from dmesg, /proc/version_signature, uname -a and lsypi -vnvn. If you need more information, just ask.

Jan

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-22-generic 2.6.32-22.36
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.32-22.36-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-22-generic x86_64
NonfreeKernelModules: fglrx
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: SB [HDA ATI SB], device 0: ALC268 Analog [ALC268 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: jan 2062 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'SB'/'HDA ATI SB at 0xcf5fc000 irq 16'
   Mixer name : 'Realtek ALC268'
   Components : 'HDA:11c11040,11790001,00100200 HDA:10ec0268,1179ff0c,00100003'
   Controls : 13
   Simple ctrls : 8
Card1.Amixer.info:
 Card hw:1 'HDMI'/'HDA ATI HDMI at 0xcfeec000 irq 19'
   Mixer name : 'ATI R6xx HDMI'
   Components : 'HDA:1002aa01,00aa0100,00100000'
   Controls : 4
   Simple ctrls : 1
Card1.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [off]
Date: Fri Jun 25 16:28:56 2010
HibernationDevice: RESUME=UUID=dba2847f-27e5-455a-bef7-a47d6e220281
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
MachineType: TOSHIBA Satellite A210
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-22-generic root=UUID=c2892d65-cc72-4ca3-8e70-d1010a303afb ro quiet vga=795 crashkernel=384M-2G:64M,2G-:128M quiet splash
ProcEnviron:
 LANG=de_DE.utf8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.34
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
dmi.bios.date: 01/15/2010
dmi.bios.vendor: TOSHIBA
dmi.bios.version: V2.30
dmi.board.name: IALAA
dmi.board.vendor: TOSHIBA
dmi.board.version: 1.00
dmi.chassis.asset.tag: *
dmi.chassis.type: 10
dmi.chassis.vendor: TOSHIBA
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnTOSHIBA:bvrV2.30:bd01/15/2010:svnTOSHIBA:pnSatelliteA210:pvrPSAELE-03Q015GR:rvnTOSHIBA:rnIALAA:rvr1.00:cvnTOSHIBA:ct10:cvrN/A:
dmi.product.name: Satellite A210
dmi.product.version: PSAELE-03Q015GR
dmi.sys.vendor: TOSHIBA