NTBackup Crashing

[ZenomIS]

I have been trying to set up a scheduled back up in the office using the NTBackup utility and have run into a really strange error. At first I ran the task with the employees domain account. I figured that when the user changed there password (I have it set up to require a password reset ever 3 months or so) it would automatically change the scheduled task as well but this is not the case. Now when I went around to change the backups to run as another account that has an unchanging password I ran into this error. When ever I change the Run As information in the backup utility and press the ok button it asks for the log in information again. it will crash if I put in anything but the information for the current user. No internal error, I just get a Visual Studio Last second debugger error.

I have been looking around for a long while and it seems like no one else has had a problem like this before. If you have any ideas it would be greatly appreciated.

Thanks