Can boot to Linux but not W2k on dual OS system

[SnapperOne 0]

My HD has both Linux and W2k on it. During the boot process, the system halts, asking me to choose the operating system I wish to use. When I boot to Linux, no problem. I am able to see files, folders and access all devices. When I attempt to boot to W2K, the boot process stops at a blue screen which says: "Stop:0x0000007B(0xEB81F84C,0xC0000034,0x00000000,0x00000000) inaccesible_boot_device"

 

What's up? How do I get my system to let me into W2K to fix this problem?

[SnapperOne 0]

AlecStaar -

 

We are accessing Linux through XANDROS.

 

Here's a bit of news I forgot the first time around. In short, for sake of discussion, things worked just fine at 5:00 when I shut the system down, without incident. When I rebooted 2 hours later, can't get into W2K. No equipment changes. No software changes.

 

SnapperOne