I go into the schedule editor and I click on the slides tab. I click on the button to adjust the master slide and change the text box dimensions. For some reason my changes are applied to all slides except slide one. This used to work for all slides. Am I doing something wrong?

Hi!

I just tested this on two machines here and it is working properly. Make sure that I am doing the same thing that you are doing. Also make sure that you only have one theme applied to the song.

I put a song in the schedule.
Right click on the song and edit item
Click on Slides
Click on Master Slide
Click on the text box and re-size it.
Click OK.