Hello, in December 2011, I purchased my PC from PCS. Yesterday (December 25th) I turned on my PC with my new peripherals expecting to be able to use them. That was not the case, I get a message telling me that my PC can't boot as there is no disk to run and it redirects me to the BIOS. I am confident its not my hard drives because I have a 1TB HDD which wouldn't be detected or my 120GB SSD. Although when I plugged in my USB external hard drive, it would give me the option to boot from that. I also took out the SATA cables and put them back in and checked if there was any loose connections, this wasn't the case. When I went to install Win7 on my external, I also noticed that my optical drive wouldn't open. Thank you.