Startup Error Message about bad def002.hst - Bad Playlist file, delete and rebuild

[dbeland50]

Although I've been getting the following message for some time, thought latest update would cure it. It didn't. I just normally ignore it and the software still works fine. But here's what I get in a button when 1st starting up Hoster:

C:MTU\Hoster\def003.hst is an invalid playlist file format.
Please only open a playlist file with a .hst extension created by Hoster.

Kinda confused here. If anybody can help me get rid of this, most appreciated.

Another item of confusion is the sometimes when running my show with the little viewing window "undocked" and enlarged and placed in the bottom right corner of my monitor, the viewing window sometimes just disappears completely. I then have to reset all windows back to default before I can set it up the way I want again. Very weird. Any suggestions or icites? Once again, most appreciate Hoster for their fine software & great support.