"MSDEWriter" reported error 0x800423f0

I am having some kind of issues if I am trying to make a systemstate backup on a SBS 2003 server. It will fail and then the following error message shows up:

Status
Operation: Backup
Active backup destination: File
Media name: "systemtest.bkf created 19-11-2007 at 21:24"

Volume shadow copy creation: Attempt 1.
"MSDEWriter" has reported an error 0x800423f0. This is part of System State. The backup cannot continue.

Error returned while creating the volume shadow copy:800423f0
Aborting Backup.

The eventlog comes with this error:

Event Type: Error
Event Source: VSS
Event Category: None
Event ID: 6005
Date: 19-11-2007
Time: 21:25:29
User: N/A
Computer: SERVER
Description:
Sqllib error: Database %1 is stored on multiple volumes, only some of which
are being shadowed.

For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 6f43202d 203a6564 534c5153 4350414e
0010: 30303030 39393330 6143202d 203a6c6c
0020: 534c5153 4350414e 30303030 37303330
0030: 4950202d 20203a44 30303030 30303336
0040: 4954202d 20203a44 30303030 30303137
0050: 4d43202d 20203a44 575c3a43 4f444e49
0060: 535c5357 65747379 5c32336d 76737376
0070: 78652e63 20202065 7355202d 203a7265
0080: 4120544e 4f485455 59544952 5359535c
0090: 204d4554 20202020 6953202d 20203a64
00a0: 2d312d53 38312d35

Any ideas how to fix this?

The problem that you are facing can occur when the following conditions are true:

1. You back up data from a volume that contains a Microsoft SQL Server database.
2. The recovery model of the SQL Server database is configured to use an option that is different from Simple.

To workaround this issue, follow the steps given on this website - http://support.microsoft.com/?id=828481