ah, I stand corrected... its 2000 with NT4.0 that had the problem and you had to get an updated ntfs.sys file for it to work because of the differences in the 2 versions didn't jibe together. heh, oops... sometimes my memory just aint what it used to be, but I did check it again. Here is the source... there maybe issues between XP and 2000, but I doubt it, they should both use the same version of new tech file system.
Windows 2000 includes several new features for the NT file system (NTFS) such as disk quotas, encryption, and mount points. These features require changes to the NTFS format. If you are installing Windows 2000 to dual- boot with Windows NT 4.0 on a volume using NTFS, you may not be able to boot Windows NT 4.0.
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The version of NTFS included with Windows 2000 cannot be interpreted correctly by Windows NT 4.0. However, there is an updated Ntfs.sys driver in Windows NT 4.0 Service Pack 4 that enables Windows NT 4.0 to read from and write to NTFS volumes in Windows 2000.
When you install Windows 2000, any mounted NTFS volumes are automatically converted to the version of NTFS included with Windows 2000. If you plan to dual-boot Windows NT 4.0 and Windows 2000 for evaluation purposes, you must first install Service Pack 4 or later on Windows NT 4.0.
This NTFS update enables Windows NT 4.0 to mount, read from, and write to NTFS volumes created in Windows 2000. However, the new features in the version of NTFS included with Windows 2000 are disabled when you boot Windows NT 4.0. Dual-booting between Windows NT 4.0 and Windows 2000 is not recommended as a long-term solution. The NTFS update for Windows NT 4.0 is provided only to assist you in evaluating and upgrading to Windows 2000.