Songs exist but Hoster can't see them!

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Hi,
I just downloaded Hoster last night and installed it without problems. I started importing my Karaoke music also without problems. I created a songbook and viewed and printed it successfully. Then I discovered that one of the discs I imported had a "b" version with different song titles. So I went in and deleted just those songs with Hoster warning me several times that it was deleting the song and (I thought) the songbook entry. It seems as though I have deleted the entire songbook. If I try and recreate it Hoster says it has zero songbook entries. All my songs are loaded on my D: drive in a directory called hoster and I can see all the files there. How can I tell it to look in the D:\hoster directory for my songs?