Problemas al iniciar protools en windows vista home premium

muy buenas.
acabo de comprarme una mbox 2 con protools LE 7.4. Al instalarlo en windows vista home premium y abrir el programa, cuando está cargando mas o menos a la mitad, me sale un mensaje de error, me dice que no se pudo iniciar msv no se que, y se me reinicia el ordenador. no se como solucionarlo. agradezco de antemano su ayuda
un saludo

Hola arsen,
Pro Tools LE 7.4 Win Vista Support:

System Software
Windows Vista Business or Ultimate Edition
32-bit OS Installation Only
Windows XP Professional or Home Edition
With Windows XP Service Pack 2 or Service Pack 3

Not Supported:
Windows Vista 64-bit (any version)
Windows XP Professional x64 Edition
Windows XP Media Center Edition
Windows 98, Me, 2000, NT, 95, 3.1, DOS

Not Tested:
Windows Vista Home and Home Premium Edition
Although Windows Vista Home and Home Premium Edition have not been tested or qualified by Digidesign, there are currently no known issues with Vista Home and Home Premium 32-bit operating systems and Pro Tools LE 7.4 compared to the supported Windows Vista Business or Ultimate Edition operating systems.

Mas info:http://www.digidesign.com/index.cfm?navid=3&langid=21&categoryid=35&itemid=28424