We can only try things.
I think your problem may be related to the database being incomplete.
I take it now you are using 5.03, once you've used 5.03 it alters your database so the same database (Songs.mdb) can't be used in Hoster earlier versions. If you want to go back to an earlier version you would have to delete your songs.mdb then rebuild the database after opening the earlier version.
From the top header menu select ImportFiles, in the next dialog select buildDatabase, in the next dialog, in the bottom left window should be a list of all your folders that contain your songs, in your case they should be showing your external drive locations as that is where you say your music is stored.
Are all the locations listed there ?
If their not or some are missing use the "Add Folder or Add folder/Subfolders" button and navigate to the folders that contain them, make sure you see all the files listed then press select.
You must have your external drive connected while doing this.
If you've done this correct you should see it indexing all the files in these folders.
If all the files are listed in this window and you don't need to add any, click on one to highlight it and you should see the content of each folder in the right hand window. While a folder is highlighted click the "Rescan" button which again should add any files it to the database. Do this to each folder.
Close Hoster, restart and see if it retains the info, if not post back.
After doing all this you may find your singers lists have disappeared, you can get these back by either pasting a copy of your singers.mbd into your C:/MTU/Hoster folder or delete the existing Singers.mdb and rename the Singers_backup.mdb to singers.mdb.
Hope you can understand all this and that it gets you going.
Best of luck
