Dear colleagues, thanks to all of you who replied to my post. Thanks specially to Peter, who was spot on with finding the cause of the problem - the missing version statement in libgfortran.so.3, and to Marcin, who posted the workaround (ln -s libgfortran.so.3.0.0 $CCP4/lib/libgfortran.so.3). It seems to work for now (Refmac is running again), and perhaps the next update will address this.
Cheers, Merry Christmas & Happy New Year, Uli _____________________________________________ dr ulrich gohlke staff scientist - macromolecular structure and interaction max-delbrueck-center for molecular medicine (mdc) +49 30 9406 - 2725 (w) +49 30 9406 - 2548 (fax) ulrich.goh...@mdc-berlin.de