Windows 7 professional task scheduler

I have problem with task scheduler with 4 computers whic are in windows domain - server 2008.

In total there are 7 computers on 3 computers task scheduler runs batch file and all works ok, but on other 3 i have the same settings, task is not runned.I can run it in task cheduler with right click on task and run it, but itself doesn't run. But runs on other 3 computers which are all the same and all windows 7 professional

All pcs runs the same batch file which is on shared folder on server.

I have runned it with folloved users: system, administrator, users, etc.

Batch file must be runned when system starts, when user login and at selected time.

What can be wrong?

I never left an open problem....I search, dig and ask, until it's solved....