Ademar, looking at your pasted info I see: I'm using: kernel 2.4.3 SiS 6326 chipset and OpenGL vendor string: Brian Paul OpenGL renderer string: SiS 300/630/530 DR Mode OpenGL version string: 1.2 Mesa 3.4 As far as I know the Sis 6326 is not the same as the Sis 630. I don't know this with 100% confidence, but I know that I had to install different drivers under Wincrap and also under linux I used the Utah-GLX drivers for the Sis 6326 chips, not the DRI. I have the Sis 630 and have not been able to get it working with the DRI. The last thing i remember getting is a Seg. Fault of some sort. I will look at it again soon, as well as the fix that you pasted. If you are interested i also posted a kinda Off Topic message on this devels list which has a URL with the PDF's for the Sis chipsets!! I don't know how these people in Ukraine (i think) got it, but I certainly couldn't find it on Sis' site, and certainly got no responses whatsoever from their tech/sales/managerial emails .. Anyways, if you do have any success with the said DRI driver, could you email me at adoniz_at_hushmail.com ( replace _at_ with @ ). I'd be interested to know the results. Also if you get a chance to go over those PDF's then please look at the sis 630 and tell me if i am confused or not, but I didn't see any specific mention on the 3D registers of that chipset. I can see all the 2D registers, but none of the 3D. I might have missed it because i have not had the time to print it out and read it, but had to skim it using Acrobat ... Anyways, good luck tony PS. I am using X 4.0.2, because Alan Hourihane told me that the last working SiS driver was done for 4.0.1a and also in some docs I saw that it was working for 4.0.2 .. somewhere. i forget right now. Kernel 2.2.19 and 2.4.3 with respective agpgart. Free, encrypted, secure Web-based email at www.hushmail.com