Hi! I get an error when i want to compile a file using btex, etex. mpost does not anderstant -interaction = batchmode : This is pdfTeX, Version 3.14159-14f-released-20000525 (MiKTeX 2.1) run time : 4 seconds metapost : essai-mpgraph format : metafun MPOST: unrecognized option `--interaction=batchmode' MPOST: try `MPOST --help' for more information. figures : figure essai-mpgraph can not be found Hervé