I would suggest you note your password and log out, re-boot and log back in. There is no format change that any of us see.
Try hitting “Articles” and then see if you get the list of most recent threads.
Or - if that doesn’t work proceed in this order:
1. run a file-undelete operation using “deep-scan”.
2. upgrade the motherboard bios.
3. reformat your main drive and re-install the OS...
8^)