It is extremely strange but I had a dual boot of Freedos and Crunchbang Linux
on my older IDE drive. I installed Windows 2000 on the Freedos partition in
order to experiment with RASPPPoE and then to experiment with reinstalling GRUB
to be able to dual boot again. My surprise was that GRUB was OK and I could
start either Crunchbang or Windows 2000 without trouble !