Using LibreOffice 4.0.2.2 on Linux Mint 15. Saved my Writer document, closed the window. After 5 minutes decided to open it again and realised that it has only 2 pages left out of 17. How is that possible? Is there any way to recover all those lost pages?
Which file format are you using? There may be a copy in the backup/ directory of your User Profile if you had that feature turned on.