System Rebuild - Lost MBR on C drive

Something happened to my C drive and it stopped booting. Other stuff was going wrong before I discovered this because I was getting emails from Crashplan that backups were not working. I was on vacation in Tucson when this started happening, so I had to wait until I got home to check it out. The network was acting up, so I decided to re-boot. No workee. I tried the repair functions from the recovery disks I created right after getting the machine, but they did not work. I got one successful boot and then it stopped working again. I can only assume the MBR sector on the disk is bad, plus some other stuff. I also tried some third party tools, but no luck. But while I was gone, the replacement disk for the bad V drive came and was sitting on the front stoop. I installed this and tried to restore the system to it from the image I had made recently. This also would not boot. So I ran a factory restore from the recovery disks, and now things are working. Of course, now I have to re-do tool installations, etc, to get everything running.

Bring up external drives

X drive comes up as J, but works. Resetting it to X

M drive is not starting. I have had some problems with this recently. Rebooting to bring up internal drives.