Installed 9.0b 32/64 no problem in Vista 64 bit except for the little yelow thingy calling for what language in the low menu bar. However in XP Pro with the Sony Bluray burner the 32 bit install dumped the computer just as if I hit the reset button and when tried again it said I had no administrator priviliges and quit the installation. Then I used the other ordinary Sony DVD burner with XP Pro and the install worked perfect except for the little yellow language thingy at the bottom menu bar. So I says to myself that maybe some of the Bluray burners are causing problems for people using Vegas. Forgot to mention this was a data DVD-R Verbatim disc burned by NERO8 after downloading.
JJK