With respect to the more than three years old grx 2.4.6 it contains, besides various corrections/improvements sent to the list support for x86_64 compilers (basically a backport from MGRX) ....... DGA2 driver for linux/X11 SDL driver (both by Dimitar Zhekov) The last driver works both in linux/x11 and win32/mingw32 systems It works both in full screen and in windowed modes, selected at run time either by setting GRX20DRV="sdl::fs" resp. "sdl::ww" or by program by using GrSetDriver(): see test/fswwtest.c This driver is compiled separately from a special section of makedefs.grx, giving libraries libgrx20S which can coexist with libgrx20 (resp libgrx20X) on a given system: mingw (resp x11), and then be selected at link time of the application programs. I justed packed everything together and checked ... Maurice -- Maurice Lombardi Laboratoire de Spectrometrie Physique, Universite Joseph Fourier de Grenoble, BP87 38402 Saint Martin d'Heres Cedex FRANCE Tel: 33 (0)4 76 51 47 51 Fax: 33 (0)4 76 63 54 95 mailto:Maurice.Lombardi@ujf-grenoble.fr