Hello again people, Sorry for all the bother, porting can be such a pain in the behind. My error omniidl: (The error was 'Unresolved symbol in /cip0/production/stackpack/compile/DEPS_OSF4/omni/lib/_omniidlmodule.so: __cxa_throw') as i said in the subject i'm using gcc v3.2. Suggestions welcome at this stage. Gary