Installing Vista, nothing on the screen

[Guest]

After installing windows vista beta 2 my computer simply doesen't display
anything, my screen goes black and displays the message: " no signal input"

I have an old video card and I'm guessing that is the problem. How can I
boot into XP and install a newer driver or simply format my computer all over
again?

 

[Guest]

How to partition and format a hard disk in Windows XP
http://support.microsoft.com/kb/313348

How to install or upgrade to Windows XP
http://support.microsoft.com/kb/316941

"no signal input" = your monitor is telling you that it is not recieving
anything it can display.

 

[Guest]

you could try safe mode...

select the vista install and press F8 on the OS choices menu... choose safe
mode