After 7 years of practically trouble free operation, I turned on my Masterlink and got a message which read "OS not recognized" or something to that effect (didn't write it down)...anyway, it asked me if I wanted to reload the Operating System...since I didn't want to lose everything I said no, but of course the system wouldn't re-boot without it, so eventually I had to reload the latest version I have (2.14 I think) and all booted up perfectly....but the hard drive was wiped (as I knew it would be)...lucky for me everything important had been backed up, but I'm worried now that I'll "have" to back up every mix in the future "just in case"...I know we're supposed to anyway, but while in the middle of a project I sometimes store each mix over time (one week, two weeks, a month depending on project) before doing the final selection, etc. Everything is good now, no error messages, etc. over the past week and I've had it off and on a dozen or more times, but I'm still nervous as hell....anyone else have this message or issue before, and if so, did the fix require anything more than reloading the OS? Just looking for a heads up in case it goes deeper than that, and that I might have a trip in for service/parts in the near future. Thanks for any and all replies, BW