For the last year I've been doing backups on a regular basis. But, the only backup set displayed is from 3/12/2011 - 3/10/2012. That is, there is one large backup set. After trying to run manually another backup yesterday, I got an error message telling me there's insufficient space. But, it now lists the partial backup that was run last night (first time for a separate set being listed).
What do I do now? If I delete the single backup set, I'm going to get rid of a year's worth of backup. I thought that the software managed the increments and only backed up what was new.
Why don't I see multiple backup sets so that I can delete some previous ones?