Overture doesn't work (Penumbra Collection)

[NaturalJow]

"If I start a Termincal.app Window go into the Penumbra Collection/Overture directory and start form here with "Penumbra.app/Contents/MacOS/Penumbra" everything works."
So you mean if you do this the game launches and you can play it? Checking to make sure.

Yes the game launches and I can play it.

And if you try to use the launcher, use the alias for Overture.app or use the Overture/Penumbra.app it does not work at all? Nothing happens?

Right, nothing happens. No error message, no crash, nothin.

You say everything is working fine except Overture won't start. Does that mean that Black Plague works?

Right, Black Plague and Requiem work however I start them.

Could you repair the permissions on the drive to make sure it is not a permission problem?

Huh, repair? Don't know how to do that. I just checked the permissions of Penumbra.app. My user has read and write access. As seems to be the case with all other files I checked.

Thanks,
Werner

PS: BTW, I had the same problem on another Mac OS X machine (both are 10.5.7), which is slightly older and has an ATI,RadeonHD2600, while the newer one has an NVIDIA 9600M card (if this is of any interest).