Please someone help me, i returned home after a few weeks away, and when i turned on my desktop it worked fine for about 10 mins, then suddenly said i problem occurred and tried to reboot, now its telling me "internal hard disk drive not found to resolve this issue, try to reseat the drive. No bootable device". i've tried rebooting, changing the order of the setup, and run a psa which says everything is hunky dory. its also telling me at the intial start up screen that there is a failed raid element. i have no idea what to do, dell's website is confusing, and my warrenty should expire late july, but the website says its already expired. in some parts and says it'll last another 2 in others. i really don't know what to do at all. its rather distressing, as all the other threads i've found on the issue either provide no answer or are too technical.