> > It's in line 243 of lpg_assoc.f OK good because I could see anything to cause the SEGV in my code read of LUTABLE and its KAPSUB routines. > Thanks for pointing that out - I've committed the fix. Makes you > wonder how these things go so long without being noticed. For LUTABLE you normally don't loop. It's usually run as some alias. As to elsewhere I don't know. LUTABLE seemed to work the first time around. Thanks for fixing it. Malcolm