I have had a continuing problem at NSBF and Universal with my compiled versions of nwx crashing trying to read surface obs. The past fix has been to copy over the Unidata nwx binary. This worked fine at NSBF with my latest compile of 5.6e (-xO4 -xtarget=whatever machine....)..however at Universal doing the same thing, copying over the Unidata binary of nwx still doesn't work. It core dumps while trying to read surface obs. Solaris 8 with latest patches is the OS Thanks Robert Mullenax Weather Systems Administrator Universal Weather and Aviation