CVSC Versions 3

Hi,

I have just tried to update CSC to version ‘3.0.172695.53’ from 2.2.12408.3 (fresh install), as the old applciation would not allow updates.
However the new application will not open once installed.
I have disabled av and fw and it still will not open following a reboot.
Can anyone please suggest why?

I am using xp home, intel core2duo, with 2.33 ghz ram with an nvidia 8600gt

thanks and appreciate any advise.