Pioneer 105 - Buffer underrun not working

I had to reformat my pc at the weekend and ever since the buffer underrun on my Pioneer 105 is not working.I am running windows 2000 service pack 4.
I am completely lost.
Help.

Check in device manager for the ide hard disk controller cards and make sure DMA is selected and not PIO mode.

Generally thjis will fix that. Also make sure the burnproof or similar is turned on in the dvd decrypter option when burning. I had to enlarge the buffer as well from 20meg to 50meg to produce smoother cache action on my quite slow pc, athlon xp 1800 (really 1200) and 100mhz bus.

Good luck man. :stuck_out_tongue: