I accidentally installed LM 7.1 with hd optimisations enabled; my BIOS doesn't support DM. Now I'm getting occasional freezes following a kernel message saying that it has disabled DMA and reset IDE. I have tried changing the DMA settings using Webmin and hdparm: I get an instant freeze. I have tried using hdparm in single user mode - same problem. I have tried commenting out the section in /etc/rc.d/init.d/mandrake_everytime that enables hd optimisations - but hdparm /dev/hda still shows that /dev/hda has DMA enabled. HELP! How do I disable DMA? Thanks, Tom
