Hi darrello,

No I never experienced it before but there are couple of things you can try. Especially if you are saying only the part of the screen where the chords are displayed was black. If this is the case I suggest you go to "options preferences" and click "return to factory settings". If this does not get it done you may have to provide a bit more detail for one of the many here on the forum who know a lot more than I regarding these technical issues.

Good Luck,