Vista 5308 installation error under Virtual PC 2004

Anyone know how to fix the following?

Error when installing Vista 5308 (MS provided CD February CTP P/N X11.97939)
under Virtual PC 2004 :

Windows Setup: setup.exe - Application Error

The exception unknown software exception (0xe0000100) occurred
{The next line contains a number that looks like 0x77 40001 but is cut
off a few pixels down from the top of the font.}

Hardware: Toshiba A15-S129 running XP Home

This is really two separate problems:
(1) 5308 won't install under Virtual PC v2004
(2) that the second line of the error message Window is cut off.

THANX!