Problem with Virtual PC

[Frozen-Shade]

i`m download reactos.iso 0.2.6 and run in Virtual PC..
reactOS report this error in boot :

Starting ReactOS 0.2.6-RELEASE (Build 20050406-r14530)
Copyright (c) 1998-2005 ReactOS Team

ReactOS is free software, covered by the GNU General Public License, and you
are welcome to change it and/or distribute copies of it under certain
conditions. There is absolutely no warranty for ReactOS.

Found 1 system processor(s). [128 MB Memory]
Initializing scsiport.sys...
Initializing atapi.sys...
Initializing class2.sys...
Initializing cdrom.sys...
Initializing cdfs.sys...
Initializing disk.sys...
Initializing floppy.sys...
Initializing vfatfs.sys...
Initializing keyboard.sys...
Initializing blue.sys...
A problem has been detected and ReactOS has been shut down to prevent damage to
your computer.

INACCESSIBLE_BOOT_DEVICE

Technical information:

*** STOP: 0x0000007B (0x00000000,0x00000000,0x00000000,0x00000000)

Frames:
<ntoskrnl.exe: 9da1>
<ntoskrnl.exe: 9dc7>
<80077B0F>
<800755D0>
<ntoskrnl.exe: be8b>
<80074285>
<ntoskrnl.exe: 104b>

maybe reactOS is not function in Virtual PC???
please help