FC Test 3: Mangled MBR

[nodata]

Hi.
I downloaded and installed FC3t3 today.
FC3t3 was installed on a second hard disk, and I have XP installed on the
first.

After the install I rebooted when asked and received a "grub geom error".
I reinstalled again, this time seeing the message "grub" then nothing.

To make Windows work again, I booted from the XP recovery CD and ran
"fixmbr".
A third install of FC3t3 broke the MBR again.

Two questions:
 1. Were the FC2/XP problems resolved in FC3t3?
 2. Any ideas? :)