error message apperas after rebooting from startup hang

[ferrari sergio]

computer hangs on startup at ubuntu logo screen.
rebooted computer then receved error message,
rebooted ubuntu startup asked to fix disk errors, when reboot system apperas to fjuction correctly.
this has happend 1 time so far

ubuntu 11.10
udev:
  Installed: 173-0ubuntu4
  Candidate: 173-0ubuntu4

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: udev 173-0ubuntu4
ProcVersionSignature: Ubuntu 3.0.0-14.23-generic 3.0.9
Uname: Linux 3.0.0-14-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
Date: Tue Jan 10 10:32:14 2012
MachineType: Dell Inc. Precision WorkStation 390
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-14-generic root=UUID=d2c4f42a-1ac1-4c5e-b1c4-966ee8c9ca80 ro quiet splash vt.handoff=7
SourcePackage: udev
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/30/2006
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 2.1.2
dmi.board.name: 0DN075
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 7
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr2.1.2:bd11/30/2006:svnDellInc.:pnPrecisionWorkStation390:pvr:rvnDellInc.:rn0DN075:rvr:cvnDellInc.:ct7:cvr:
dmi.product.name: Precision WorkStation 390
dmi.sys.vendor: Dell Inc.