as title states my computer has started having a strange issue where it will freeze up and upon reboot i will receive a message asking me to please connect a bootable device. if i go into bios my crucial m4 is not listed. i can get it to boot by either disconnecting the power and sata cables, reconnecting them and then rebooting or by simply waiting a few minutes and then powering on the pc. i havent had a whole lot of time to spend troubleshooting so all i have had time to do so far is run a virus scan and a spyware scan and both came up clean. anyone have any ideas or experienced this issue before?