BB Bold :: Desktop Software MAC / Memory Full

when I tried to add songs to the blackberry, Finder said that the Blackberry had 97.2 MB left, I had not even come close to filling the capacity, so I found that strange. Then, I deleted some songs in the directory, nothing changed, still 97.2 MB left. Then I used the Desktop manager, according to the software I had filled 1.7 GB with something that was not music or pictures, even though those are the only two things I have ever put on the phone. So, after deleting all media, which did absolutely nothing, and syncing, and restoring to see if that would help, nothing. In another query someone had sugested formatting the card, since this has been working with and without desktop manager for so long I don't see that as being the problem. However, desktop manager for mac in general is terrible, the program freezes all the time, every single time you hit the X in the corner.