3rd request, scheduled event problem

I had an event on my XP system that just popped up a text file. If the

system was not on at the appointed time then it would start when the

system was started. If the text file was closed it would keep

reopening every 5 minutes. (If it was already open it wouldn't open

another.) I would use this as a monthly reminder. When I was done with

it I would reschedule it to start next month.

I've tried to do the same thing in Vista but it won't. It runs if the

system is on, but doesn't start it on system-start if it was missed.

Nor does it restart if I close the text file. I have it scheduled to

start one time on a given date. I have the check box for start on

system-start if it's missed. I have settings to try to restart every 5

minutes if it's not running. But it doesn't pay attention to those

settings. Help would be appreciated.

Thanks,

Tom