Since I had no response to my pleas for help when it was complicated, here is a simple question... I do a modprobe bttv and get the following... mode: NORMAL Module matching i2c-core: /lib/modules/2.4.2-2/kernel/drivers/i2c/i2c-core.o ============================================= /sbin/insmod -s /lib/modules/2.4.2-2/kernel/drivers/i2c/i2c-core.o [root@SaltRiver /root]# modprobe -dvs i2c-algo-bit ================================i2c-algo-bit.o: i2c bit algorithm module ============= Module i2c-core kname i2c-core objkey i2c-core names: i2c-core mode: NORMAL Module matching i2c-core: /lib/modules/2.4.2-2/kernel/drivers/i2c/i2c-core.o ============================================= ============================================= Module i2c-algo-bit kname i2c-algo-bit objkey i2c-algo-bit names: i2c-algo-bit mode: NORMAL Module matching i2c-algo-bit: /lib/modules/2.4.2-2/kernel/drivers/i2c/i2c-algo-b it.o ============================================= /sbin/insmod -s /lib/modules/2.4.2-2/kernel/drivers/i2c/i2c-algo-bit.o [root@SaltRiver /root]# modprobe -dvs videodev ============================================= Module videodev kname videodev objkey videodev names: videodev mode: NORMAL Module matching videodev: /lib/modules/2.4.2-2/kernel/drivers/media/video/videod ev.o ============================================= /sbin/insmod -s /lib/modules/2.4.2-2/kernel/drivers/media/video/videodev.o [root@SaltRiver /root]# modprobe -dvs bttv ============================================= Module videodev kname videodev objkey videodev At which time the kernel hangs hard. Must power cycle to get going again. How do I determine what is hanging it? Thanks for any help. Mike