lucid doesn't boot properly

[Bernhard]

Binary package hint: plymouth

I run lucid with all recent updates. I currently have the following situation when I boot:

1) first there is a black screen
2) I press CTRL-ALT-F8 and I get a desktop that asks me for the keyring password
3) I enter the password and it throws me back to the black screen
4) after waiting a while it then takes me to the gdm login screen
5) then I can enter my password again and it finally takes me to the desktop

ProblemType: Bug
Architecture: amd64
Date: Tue Mar 2 10:27:36 2010
DistroRelease: Ubuntu 10.04
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100224.1)
MachineType: FUJITSU SIEMENS AMILO Si 2636
Package: plymouth 0.8.0~-10ubuntu1
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-14-generic root=UUID=dde6c0f0-f344-4722-a13b-12c7d44b6838 ro quiet splash
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.utf8
 SHELL=/bin/zsh
ProcFB:
 0 inteldrmfb
 1 VGA16 VGA
ProcVersionSignature: Ubuntu 2.6.32-14.20-generic
SourcePackage: plymouth
Uname: Linux 2.6.32-14-generic x86_64
dmi.bios.date: 01/14/2008
dmi.bios.vendor: Phoenix
dmi.bios.version: 1.0B-1471-0012
dmi.board.name: MR030___
dmi.board.vendor: FUJITSU SIEMENS
dmi.board.version: 8r7c21245
dmi.chassis.type: 10
dmi.chassis.vendor: FUJITSU SIEMENS
dmi.chassis.version: Version 1.0
dmi.modalias: dmi:bvnPhoenix:bvr1.0B-1471-0012:bd01/14/2008:svnFUJITSUSIEMENS:pnAMILOSi2636:pvrREFERENCE:rvnFUJITSUSIEMENS:rnMR030___:rvr8r7c21245:cvnFUJITSUSIEMENS:ct10:cvrVersion1.0:
dmi.product.name: AMILO Si 2636
dmi.product.version: REFERENCE
dmi.sys.vendor: FUJITSU SIEMENS

[Bernhard (b.a.koenig)]

This is with automatic login btw.