Hi people... I get as far as the boot screen when trying to install Niresh Mavericks... I've tried different keyboards in different USB ports, but it won't accept any input or let me press enter to begin the install. All works perfectly in the bios.... Gigabyte x58 ud7 Core i7 980 extreme gulftown cpu GTX580 Any ideas please?! Cheers, M SOLVED! I found that I had to enable legacy USB keyboard support in the bios...