Scheduled Tasks Won’t start

I have a scheduled task that runs a batch file.
It will not start, even when I try to start it manually.
The task “zipit” is scheduled to run everyday at 8:30PM, it calls on a batch file called zipit.bat
all the batch file does is copy some *.bak files over mapped drives.
The job is configured to run as Domain Admin, password is correct…

Thanks
Nando