Failure Audit - Login failed for user

[qssgroup]

Hi

I've recently changed the administrator password.

During the process i've reset the services log on to.

I restart the services fine.

But i checked my event log and I'm getting a Failure Audit

Event Type: Failure Audit
Event Source: MSSQL$BKUPEXEC
Event Category: (4)
Event ID: 18456
Date:  18/01/2008
Time:  12:16:05
User:  Domain\Administrator
Computer: Server

Description:
Login failed for user 'Domain\Administrator'. [CLIENT: 192.168.1.2]

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

Any ideas on how to fix the problem??

Using Backup Exec 11d

Thanks in advance