Description of problem: Installation of Fedora 8 on a system with an existing NTFS partition (Mac Pro with EFI; triple boot Linux/MacOS/Windows XP; this is an intel based system) modifies the NTFS partition type to "unknown" type (hex C0 - I recall) and Windows fails to boot after this. I changed the partition type with fdisk back to NTFS and everything worked again. So, somehow, anaconda changed the partition type during Linux (Fedolra 8 / 64bit) installation. I have not tried if this happens on regular BIOS based PCs.
Have you been able to reproduce this error in Fedora 9?
Sorry.. cant' test it any more. I got so frustrated with mac and windows that I have removed them from my computers.