Achievements Gone...
I have an issue when playing ME3, my PC locks and I have to use the power button to reboot - I suspect it is a video card issue. That can be annoying but tolerable. It happens a 3 or 4 times a week. When I go back into ME3, I am asked what save to use... the local one or the online one. I choose the local because it is the most current.
Anyway, it seems it happened at the "right" time twice. When I went back into ME3 and chose to load from my PC, all achievements are gone. That in and of itself isn't really a big deal to me. What is kinda annoying is if I am playing a SP game, all the bonus powers you can assign to Shepard are gone. So my question... what is the name of the file on my PC that records the achievements I've unlocked? I prefer not to load from an older online save when the PC freezes. The reason for that is if I've gone through several online games, those updates and any store purchases aren't lost.