Karmic boot message

[Jonenst]

I installed Karmic beta with a USB-key using UNetBooting and the regular desktop live cd.
When booting, I get the following message :
"usb_id[XXX] unable to access : /devives/pci0000:00/0000:001d.3/usb5/5-2"
It stays on screen for 5-10 seconds (I almost had time to write it down by hand before it disappeared)

Then, I get a 1 or 2 messages like "fsck [ OK ]". Then xplash launches and boot continues

The following might be unrelated :
Most of the time, the desktop will not load, it shows the background image after everything else faded out, and a working mouse pointer. I then hit CTRL+ALT+F1, log in, do sudo /etc/init.d/gdm restart and everything works.

ProblemType: Bug
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: jon 1515 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'ICH6'/'Intel ICH6 with STAC9750,51 at irq 16'
   Mixer name : 'SigmaTel STAC9750,51'
   Components : 'AC97a:83847650'
   Controls : 38
   Simple ctrls : 24
Date: Tue Oct 6 19:02:51 2009
DistroRelease: Ubuntu 9.10
HibernationDevice: RESUME=UUID=8c72cb68-263e-4206-aea6-258456b30516
MachineType: Dell Inc. Inspiron XPS Gen2
NonfreeKernelModules: nvidia
Package: linux-image-2.6.31-11-generic 2.6.31-11.36
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-11-generic root=UUID=967f06a2-7188-4aea-aba6-35df8d1af116 ro quiet splash
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/zsh
ProcVersionSignature: Ubuntu 2.6.31-11.36-generic
RelatedPackageVersions:
 linux-backports-modules-2.6.31-11-generic N/A
 linux-firmware 1.19
RfKill:
 0: hci0: Bluetooth
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
Uname: Linux 2.6.31-11-generic i686
dmi.bios.date: 09/28/2005
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A05
dmi.board.name: 0F8460
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA05:bd09/28/2005:svnDellInc.:pnInspironXPSGen2:pvr:rvnDellInc.:rn0F8460:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Inspiron XPS Gen2
dmi.sys.vendor: Dell Inc.