Everything has been absolutely rock stable with my system (see sig) for almost a year since I built it. A couple of days ago all hell started breaking loose. Files would corrupt, wouldn't save, or wouldn't launch, shutdown would just go to the Shutting Down screen and stay there for hours until I had to unplug the rig, etc. etc. etc. So last night I reformatted the boot drive and reinstalled everything from scratch. Everything seems fine now except that the two drives I use for data are playing peekaboo. Sometimes they're there, sometimes they're not, and I have to reboot several times to see them again. I've checked connections, I've run the Disk Manager, I've used Seatools, etc. but they're just not visible anywhere. Right now I've just rebooted three times in a row and I still can't see them anywhere. (Yes, they're IN the case... hahaha). An interesting note. This peekaboo seems to have started this morning after Win7 went through all of its updating, etc. and I might be suspecting that it's the latest Windows Update as it wasn't doing it through the hours while the system was going through the updates. Any clues? This is really frustrating, not to mention that it's really hard to get any work done when you have all your data on separate SSDs, and all you have on your PC is your C drive!