Text position randomized upon each Open
I have been working with a single file with only one scene in it. Each time I open it, the text on random slides is misaligned. Sometimes it's slides 3, 5, 12, 16, 23, 45, etc. sometimes it's slides 1, 2, 7, 8, 14, 35, 68, etc. But always, somewhere, my painstakingly aligned text has been moved by gremlins while the file was sleeping. Anyone have this issue? What am I doing wrong? Thanks so much for your help.