I just found out more about the situation.... First of all the Card was actually pulled out from an HP machine, I got it second hand, second this is a PCI-E 3.0 card while the Mobo is 2.0 , but I searched on-line and found that PCI-E 3.0 card are backward compatible with the 2.0 slots.... so I am still confused... I just tried uninstall the G41 drivers, same thing didn't work. and then I tried to even reinstall windows with the Radeon 7770 plugged in, same thing, the Windows loading screen was stuck at the same place....