Hi All, For the last few months, in mailing lists, I've heard so many pb coming from Intel PIIX Busmaster device driver installation that I was waiting for a non coming fixed version. By the way, I was using the last ESDI506.PDR without any pb. Yesterday, after backup, I've successfully installed Intel driver: no pb at all. But, what are benefits from Esdi506.pdr config. ? Performance seems equivalent. Where are Intel Busmaster device driver specific Registry entries for Win95 ? Config. : PII 233, Asus P2L97 mobo (440LX chipset), UDMA2 Seagate 32122 Hdd master primary, PIO4 Quantum FB1280 hdd slave primary, UDMA2 CD 24X master secondary Thanks for answer Philippe