nope it's all fine with the orcs.....and oolghrist prefers to join the water temple instead of the fire temple and i quess that's why he wants to go back to the temple.
if you look at his dialogue file, you'll see that he has no preference as such for the temples. in fact, he'll play both of them for fools if he can. there's also a line that says that he cannot join the temples since he has joined you, and will wait for your return if you tell him to leave the party!
that must be a bug! And i haven't told him that he has to join some kind of a temple so where does he get the idea from?
I've never had that problem. I always pick him up before I talk to either the Fire or the Water temple, and have him in my party when I do talk to them. When I get to the quests that involve him, they say that I've already killed him, even though he's right there. Even before I talk to the temples I can get him to leave and rejoin. EDIT: I always do the Fire temple before the Water temple. Maybe that has something to do with it. But I have had him join before I even went to Nulb and have never had a problem with him leaving and rejoining.
I only work for the air temple...(it's because Kelno is the only one that won't kill me when i choose not to wear those ugly robes) and Kelno doesn't want Oolghrist....