trustedinstaller exe pegs cpu usage 100 cannot reboot

I'm using beta 2 version that was distributed at the Pro Photo Summit at Microsoft. Did a new install. Dometime during last night, the program "TrustedInstaller.exe" started hogging the CPU. I let it go for a while this morning, but then tried to reboot. Vista began the shutdown process, but it has been sitting for several hours with the message "Please do not power off or unplug your machine" plus some obsured characters below that message that are illegible.
I'm tempted to ignore the message and unplug the machine. But I thought I'd check first whether there is a known bug with trustedinstaller.exe and whether anyone else has suggestions.

On 2006-07-01 21:28, dhalbakken wrote:

I'm using beta 2 version that was distributed at the Pro Photo Summit at Microsoft. Did a new install. Dometime during last night, the program "TrustedInstaller.exe" started hogging the CPU. I let it go for a while this morning, but then tried to reboot. Vista began the shutdown process, but it has been sitting for several hours with the message "Please do not power off or unplug your machine" plus some obsured characters below that message that are illegible.
I'm tempted to ignore the message and unplug the machine. But I thought I'd check first whether there is a known bug with trustedinstaller.exe and whether anyone else has suggestions.

Anything happens if you press Ctrl + Alt + Del? If it does try starting the Task Manager and use that to kill of TrustedInstaller.exe. Or choose reboot from that screen. Should that not work a hard reset is the only solution.
-- Erik Wikström