It just hit our league, too, and I'm positive I know what happened (sorta).
I save a full backup then do incremental ones after each sim until the update zip gets to be big enough to do another full backup. I did one right after we moved from 2008 to 2009. Everything was fine. At some point during the past week, I went in and looked at the retired players list (no power interruptions... no shutting off with the retirees listed), and now we have various retired players taking the place of active ones throughout the league.
I restored the full backup and all is fine. Need to re-run the last few FA sim days, though... and stay out of retired players list!!
Just thought I'd report this, so others don't think they're going crazy.
I am running 6.12 on Windows XP. Never had any problems before, but I've also never bothered going into retired players before (we just got to the point in our history where we are looking for potential HoF'ers).
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