You said the motherboard manufacturer's logo pops up when you turn on the PC, or is Samsung the monitor manufacturer? Can you see BIOS information loading? Most of the logos you will see are the computer manufacturer and then the OS logo. It sounds like there is a problem loading the drivers once the OS takes over, maybe a resolution set higher than the video card's specs or a bad refresh rate?
the monitor is built in like a laptop lcd that has a small connector that connects to motherboard.and both are samsung...i cannot see the bios info loading.. only that logo and sometimes no display or black screen but it has a power..
more info: keyboard and mouse are usb type..
so i cannot press any key in the keyboard until windows load.