Maintenance plan does not run

Hi - I have a strange situation where the Maintenance plan on a SQL 7, build 961 will not generate .BAK and .TRN files based on the maintenance plan (or at all). I have tried deleteing and recreating the maintenance plan, but, according to the system log, and to maintenance plan logs, the entire maintenance plan is not launching any tasks. However the application log whoes all the jobs as failing, but gives no furhter details.

However I have another server running build 623 that is working fine.

Any ideas from anyone? All help appreciated.Why use a maintenance plan - they give lots of problems.
Just schedule a backup job or jobs.
Have them call a stored procedure and put the backup statement in that.|||Here's the error from Eventlog:

SQL Server Scheduled Job 'Transaction Log Backup Job for DB Maintenance Plan 'Webmon1'' (0x42E6C45B360CD611935D0002B330ABF9) - Status: Failed - Invoked on: 2/8/02 4:10:46 PM - Message: The job failed. The Job was invoked by User XXXXXX\Administrator. The last step to run was step 1 (Step 1).|||What happens if you try the same backup using a backup command?

MAIL on SQL Server 2000 Standard on Windows Server 2003 64-bit

I've read about 2005 Enterprise Edition 64-bit and 2000 Enterprise Edition 64-bit and those mail issues. But, my particular situation is running SQL Server 2000 Standard Edition (32-bit) on Windows 2003 Server (64-bit). I got the mail profile set up ok for the SQL Server Service Account using Outlook 2000 and can send and receive mail using Outlook. But, even after restarting the SQL Server Services, there's no profile to choose in the SQL Mail or Agent Mail drop-down box. I have tried ON the server and remotely. Locally, the drop-down box doesn't even really 'drop down'. Remotely, I get the drop-down but it is empty. I don't need a primer on configuring SQL Mail for SQL 2000. I just need to know if this combination of SQL Server Editions and OS Editions will even support SQL Mail. Maybe adding the appropriate values in the registry will enable me to use this mail profile for SQL Server?
What about that smtp client that's out there. I've not used it on any machine and don't want to make this goofy one the guinea pig if it hasn't been proven to work.
No, we can't go to SQL Server 2005 yet on this server. It hosts a purchased system that isn't supported on SQL Server 2005.
Thanks for your help,
Michelle
I rebooted the server and was able to configure the mail profile and select it from my client/enterprise manager. It seems like things generally require a reboot more often on this server than I've experienced on other servers. I tested agent mail, xp_sendamail, and dts send mail tasks all to success. Now I'm fighting with installation of the SQL Server Health & History Tool.
Just wanted to document that sql mail DOES seem to work with this configuration. Keep trying and I'm sure that you'll get it to work, too :)