Fanouris Moraitis wrote: > > for example I did > pd -lib gem > > but it says that It can't load the library > > What am I doing wrong? pd and your filesystem are case-sensitive, the library is called "Gem" and not "gem". try "pd -lib Gem" if it still does not work, try "pd -verbose -lib Gem" and tell us what it says. mfg.adr IOhannes