Ghostscript issue with ULE scheduler

Hi,

I am using FreeBSD 5.3 Beta 7 on I386 and have some troubles with the 
ULE scheduler and Ghostscript.

My printer is a Samsung ML-1710 laser and is connected via USB. A cups 
scheduler is configured with the driver
from www.linuxprinting.org.

At the end of printing a document the system freezes. It seems that this 
issue only occurs if i use the ULE scheduler.
Printing the same file  with  the BSD Scheduler works.

Someone else has this problem here ?

bye
Bjoern