I have the same problem.I tried reinstalling Vantage with no luck.It still freeze my PC.I even tried to reinstall Vantage and futuremark system info, and PhysX drivers but with no luck.System freeze when loading first test or sometimes manage to load first test and than hangs in the middle of it.
I have windows 7 x64 with sp1 and IE9 installed.
My configuration is:
Intel Core 2 Duo 8400
DFI P35 T2RL BloodIron - installed latest Intel chipset drivers
Samsung F3 1 TB HDD
Sapphire Radeon 4770 card - cat 11.2 installed
ASUS Xonar DS - 184.108.40.2063 driver installed
4 x 1 GB DDR2 @ 800cl5