On advice from kOlo I have reorganised my boot setup so that XP and Vista each occupy a primary partition on the same SATA disk. (Formerly XP was on primary and Vista on an extended logical partition, and ATI 11 has not been able to successfully image and restore the Vista partition). I have tested each OS using DD to hide the OS partition not in use, and everything is working correctly. I now want to install Grub4DOS as a boot manager but have run into a problem. Trying to install Grub4DOS from Vista the install complains that the partition table is bad and will not offer the option to install to Whole Disk MBR. It is offering Whole Disk Other. I have killed it and need some guidance as to the next step please.