You ignored earlier failure messages - there seems to be no PP.EXE in your $SYSLOCAL area Try cd $AIPS_ROOT source LOGIN.CSH $CDTST cd $SYSLOCAL ls -laF $FORT -O -o PP.EXE PP.f ZTRLOP.o where you must substitute for the $FORT the actual path to your Fortran compiler and all the O and o's above are the letter "oh" Send me what happens. Eric Greisen