I had to do a clean reinstall of Yosemite on my MacBook Pro. I have an external hard drive that I had been using for my Time Mache backups. After I restored my Operating system, I want to reconnect my former T-M backup hard drive. But it appears theres only one days backup on that drive. Whats happened to all my previous backups? I know it was working correctly before because I've gone back in time to restore files before. Oh, yeah, the HDD says it has only 64GB free on a 2TB HDD. Anyone got any ideas?