Hi all, I'm trying to build R 2.1.1 on Ubuntu 5.04 i686-SMP. Configure goes well with: ./configure --with-BLAS --with-readline=no but once I run 'make', I get the following error: In file included from devX11.c:64: devX11.h:57:74: X11/Intrinsic.h: No such file or directory Any ideas? Thanks in advance, Jake