Hi Last year I could precompile the units with -c and then go to the demos directory and, for instance, gpc -o pi pi.pas and it worked. (gpc-19991030) Not now. Precompile the units and go to the demos directory and gpc -o pi pi.pas gives two link errs. gpc --automake -o pi pi.pas works fine, but if I do gpc -o pi pi.pas right afterwards I get the link errs again. (gpc-200007xx but don't know when the change occurred) crtdemo does same, just more errs. Thanks Russ