Hi, Is there a way to know which library is giving a warning? Specifically, I'm getting a set of warnings: "Too many open raster files" Thanks and best wishes, -- Javier García-Pintado Institute of Earth Sciences Jaume Almera (CSIC) Lluis Sole Sabaris s/n, 08028 Barcelona Phone: +34 934095410 Fax: +34 934110012 e-mail:jgarcia at ija.csic.es