You all know by now that I have some weird problems. Thanks to Herbert and Bryan and lots of other informative good Samaritans, here is what works for me. Thanks a bunch to all of you.
bash$ ps2ps ecg.sol ecgsol.ps bash$ pstopnm ecgsol.ps && gzip -9 ecgsol*.ppm pstopnm: Writing ppmraw file bash$ gunzip -c ecgsol001.ppm.gz > ecgsol001.ppm | ppmtoxpm ecgsol001.ppm > ecgsol001.xpm && rm *.ppm
