I am using Lightroom 2 on my HP laptop and have been suffering from some bugs for a long time. I plug in my cameras and edit the photos as usual; but, on occasion, the pictures become drastically cropped, re-edited, corrected, etc. without my doing so. I edit my pictures, export them into folders, maybe even upload them to Facebook, and all is normal - but when I re-visit those photos in Lightroom again later, sometimes they have become extremely distorted and re-done, sometimes to the point of no return. I am extremely frustrated because it takes a very long time for me to restore the pictures to the edit settings I got them to, and I would like for this to not happen in the future. Please help me fix this problem! Thanks!