Hey guys, I am having some issues with my PC. My main drive with my OS is SATA, as well as my DVD-RW. As of this morning, I received a "DISK BOOT FAILURE, INSERT SYSTEM DISK AND PRESS ENTER" message when trying to turn on my computer. I checked my BIOS and the drive is not visible. I then tried to install the OS again on a new drive temporarily but my DVD-RW is not registering either. It is almost as if both SATA devices are not responding. I am using a Gigabyte motherboard with a Seagate 500GB hard drive and Lite-On DVD-RW. Please help.