[XeTeX] Warnings after switch to Tiger

[Sebastian Hanigk]

Hello!

After switching to 10.4 a few days ago, I'm encountering these  
warnings whenever I'm running XeTeX:

> WARNING: Type1 font data returned by OFAStreamPSDownload isn't in  
> the correct format required by the Adobe Type 1 Font Format  
> specification.

The PDF output is OK, though. What's the cause for this warning and  
can I do anything against it?

Thanks!

Sebastian