Thanks Nitro 58. There doesn't appear to be a tri/ex on the speccy file so I can't comment on this. The tri/ex appears next to the letters NTFS when I run the partition editor G Parted. Going by your comment that it shows up when something is amiss, I would assume that there may be something wrong with the partition it's self. Everything is running as normal and I have a Linux distro on the drive as well. I will run G Parted again and see if there are any observable signs of something amiss.