I installed XP on my PC last weekend.

I've setup a scheduled task for SETI, to 'Run at system start-up" however
this status of this task is "The scheduled task did not run because no user
account password was entered".

The user name I've setup on XP does not have a password, so I left the
password field blank when setting up the scheduled task.

Does anyone know how I can resolve this issue so SETI runs automatically
when my PC starts?

Si.