Hi again, I followed your advice and I have updated my kernel to version 2.4.20. For that I downloaded the sources, then unpacked them to /usr/src then I patched them with the kernel patch "patch-2.4.20-kraxel.gz" (found in the http://bytesex.org/patches/2.4/) then compiled the kernel (with the v4l option set to Module) and installed the new kernel. After that I downloaded the bttv-0.9.3.tar.gz and compliled it. On make install the following error appeared: strip --strip-debug video-buf.o bttv.o su -c "mkdir -p /lib/modules/2.4.20/v4l2; cp -v video-buf.o bttv.o /lib/modules/2.4.20/v4l2; depmod -a" `video-buf.o' -> `/lib/modules/2.4.20/v4l2/video-buf.o' `bttv.o' -> `/lib/modules/2.4.20/v4l2/bttv.o' depmod: *** Unresolved symbols in /lib/modules/2.4.20/v4l2/bttv.o Do you know what is wrong? Jorge