Hello Oliver,
>> substracting solid from solid...
Dosen't look like two solids;-) Please explain: What is base object, what is substractor and what should the result looks like.
And if the file is not confidential - please post it - so everyone can have a look and maybe find a solution.

Have a nice day
Karsten

p.s.: Und ich dachte, nur der rote Baron kommt aus der Sonne ...