I have a Gigabyte H61M-S1 motherboard with Intel G630 processor. When the monitor is connected to the vga port on the motherboard the PC boots properly. But when connected to the VGA port on Zotac GT 610 2gb graphics card, the display is stuck at Gigabyte bios options and the pressing any key on the keyboard doesn't select any bios options. Please guide what do I do?