Hello again The difficulties continue... this morning the compiler crashed so badly it wouldn't compile anything. After a few struggles, I did a clean delete, download, and reinstall. Things are going pretty well, and now all programs compile fine except those that use the grx unit. I compiled the unit OK, and moved grx.o to the djgpp/bin directory. But when I compile (alt-c c) I get: Error: module/unit interface 'Grx20' could not be imported When I make (F9), I get: Error: module/unit interface 'Grx20' could not be compiled What is this about, and what do I have to do to make it work? regards, Toby