Yep, it jacked it. wants to reindex from day one again (fourth time). Last time it took weeks at my dsl speed.
Rebuilding the DB has nothing to do with re-downloading the blockchain. It just scans the blockchain and rebuilds the DB. What kind of computer do you have that requires weeks to do this? A reasonably modern computer shouldn't take more than an hour (assuming you have an SSD instead of a hard drive), and even that's a bit high from what I've observed.