Oracle is started with sidadm instead of orasid

Hi, all.

We are running on oracle 11.2.0.2. After the upgrade from 10g, I noticed that oracle(like pmon, smon, etc) are started by sidadm instead of orasid. Do you know how to rectify the issue? I have a hard time tracing the startsap script, still trying though. Anybody ran into this issue?

By the way, the database did function properly though.

Thanks,

Jonathan.