hy, can anbody help me with a problem please? i buy a gigabyte motherboard ga-p41t-d3p. i install windows 7 64 bit and system start ok. i install after driver for my vga card leaddtek nvidia gt 430 and after that the system block and don't want to start. when start the system see my card but after gigabyte logo appear the system block. after i uninstall drvier everything work again. any solution, please? thank you