Internal hard disk partition cannot be mounted manually

Binary package hint: udisks

Not real sure what you mean by "bug". My problem is, I have a 250 gig hard drive that mounted fine until today. Now it won't mount. The last thing I was doing, was burning data from the drive onto CD's using CD creator on Ubuntu system. Worked fine last night.

Message I received while using the fuser command:
Mount is denied because the NTFS volume is already exclusively opened.
The volume may be already mounted, or another software may use it which
could be identified for example by the help of the 'fuser' command.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: udisks 1.0.1+git20100614-3
ProcVersionSignature: Ubuntu 2.6.35-24.42-generic 2.6.35.8
Uname: Linux 2.6.35-24-generic i686
Architecture: i386
Date: Mon Jan 10 16:21:40 2011
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
MachineType: Gateway E-6000
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-24-generic root=UUID=a905311f-b4e2-47c6-919b-c9d8746e37a8 ro quiet splash
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: udisks
Symptom: storage
Title: Internal hard disk partition cannot be mounted manually
dmi.bios.date: 09/19/2002
dmi.bios.vendor: Intel Corp.
dmi.bios.version: MV85010A.15A.0075.P13.0209191141
dmi.board.name: D850EMV2
dmi.board.vendor: Intel Corporation
dmi.board.version: AAA87987-603
dmi.chassis.type: 3
dmi.chassis.vendor: Gateway
dmi.chassis.version: HVA10B15
dmi.modalias: dmi:bvnIntelCorp.:bvrMV85010A.15A.0075.P13.0209191141:bd09/19/2002:svnGateway:pnE-6000:pvr4000810:rvnIntelCorporation:rnD850EMV2:rvrAAA87987-603:cvnGateway:ct3:cvrHVA10B15:
dmi.product.name: E-6000
dmi.product.version: 4000810
dmi.sys.vendor: Gateway