Hi, I spent some digging through the code but could not find answer to some of the questions. Hope someone can help out. 1) Mesa/src/glx/x11 is the same as in X-server branch under GL/glx. I am assuming that the code in X-server is what should be used. Right ? 2) Mesa/src/mesa is similar to X-server branch under GL/mesa. X-server just refers to the code in Mesa. Don't we just need the software rendering code in X-server ? Why is glapi included on the Xserver side ? Also, why are we making libX.la ? 3) Mesa/src/drivers/dri/<driver-name>/server/ What does the 3D driver supposed to provide under server directory ? Is there a document describing this ? 4) xf86driproto/xf86dri.h : has several functions like XF86DRIQueryExtension etc. which sends X requests and are handled in hw/xfree86/dri/xf86dri.c, dri.c. What i can't find is where these functions (declared in xf86dri.h) are defined. 5) 2D Driver calls DRIQueryVersion. Where is this defined ? Any help would be appreciated. If i am not reading some document, please let me know. Is the document under hw/xfree86/doc/README.DRI reflect the current state of things. It is dated June 2001. Thanks mohan