Problem with grub

[Greg S .]

Hello, I had GRUB but it does not work any more since i updated my BIOS,
when "Loading grub..." my PC reboot.
Before the BIOS update GRUB worked fine.
I have an ABIT KT7-RAID (BIOS 3R revision) and my hard drive is on first
channel of ATA100 controler (/dev/hde under Linux)
I use GRUB 0.90 on my Debian 2.4 (package grub_0.90-8_i386.deb).

My GRUB's config (menu.lst) is :
>default 0
>timeout 10
>
>title Windows
>root (hd0,0)
>makeactive
>chainloader +1
>
>title Linux 2.4.6 VGA + SCSI
>kernel /boot/vmlinuz-2.4.6 vga=791 hdc=ide-scsi

and device.map is :
>(fd0) /dev/fd0
>(hd0) /dev/hde

and finally i use 'grub-install' to install it :
>grub-install /dev/hde
>Installation finished. No error reported.
>This is the contents of the device map /boot/grub/device.map.
>Check if this is correct or not. If any of the lines is incorrect,
>fix it and re-run the script `grub-install'.
>
>(fd0)   /dev/fd0
>(hd0)   /dev/hde

Can you help me for this please ? It's hard to boot on floppy every times.
Thanks
(sorry for my bad english, i'm french)