screen blank after vista install hp dv8000 series lapto

Installed Vista Beta 1 Build 5112 on an HPdv8000 series laptop - no installation errors encountered.
Appears to boot normally but just goes to a black screen that has Windows Vista (TM) Beta 1 Evaluation copy Build 5112 in white letters at the bottom and the mouse pointer - no icons - mouse moves but mouse buttons do not work (ex: can't right click to get the desktop) - cant reboot with ctrl/alt/del - have to power off.
Graphics card is an NVIDIA GeForce Go 7400 PCI Express
Processor is an Intel Centrino Duo T2300
Any ideas?
Thanks

Try on the latest build - 5308 on MSDN or 5342 on Microsoft Connect. 5112 is long gone - if something doesn't work on that, it probably will on the latest build :o)
-- Zack Whittaker » ZackNET Enterprises: www.zacknet.co.uk » MSBlog on ResDev: www.msblog.org » Vista Knowledge Base: www.vistabase.co.uk » This mailing is provided "as is" with no warranties, and confers no rights. All opinions expressed are those of myself unless stated so, and not of my employer, best friend, Ghandi, my mother or my cat. Glad we cleared that up!
--: Original message follows :-- "DayTech" wrote in message

Installed Vista Beta 1 Build 5112 on an HPdv8000 series laptop - no installation errors encountered.
Appears to boot normally but just goes to a black screen that has Windows Vista (TM) Beta 1 Evaluation copy Build 5112 in white letters at the bottom and the mouse pointer - no icons - mouse moves but mouse buttons do not work (ex: can't right click to get the desktop) - cant reboot with ctrl/alt/del - have to power off.
Graphics card is an NVIDIA GeForce Go 7400 PCI Express
Processor is an Intel Centrino Duo T2300
Any ideas?
Thanks

Are you able to boot into safe mode? Are there any external devices connected to the computer during boot up? How memory is installed in the system? External devices can sometimes cause conflicts with the system boot up and also detection. Try removing them, also limited memory can factor into this, recommendations are 512 MBs and up, especially for Notebooks, the more the better. -- -- Andre Windows Connected | http://www.windowsconnected.com Extended64 | http://www.extended64.com Blog | http://www.extended64.com/blogs/andre http://spaces.msn.com/members/adacosta
"DayTech" wrote in message

Installed Vista Beta 1 Build 5112 on an HPdv8000 series laptop - no installation errors encountered.
Appears to boot normally but just goes to a black screen that has Windows Vista (TM) Beta 1 Evaluation copy Build 5112 in white letters at the bottom and the mouse pointer - no icons - mouse moves but mouse buttons do not work (ex: can't right click to get the desktop) - cant reboot with ctrl/alt/del - have to power off.
Graphics card is an NVIDIA GeForce Go 7400 PCI Express
Processor is an Intel Centrino Duo T2300
Any ideas?
Thanks