to Hrbrgr,
I guess I wasn’t clear. I know how to remove the transition from a slide . I want to remove the transitions from the transitions menu that do not work for my SBC installation. I could, as EarnestAI suggests, turn off OPENGL, which will make the last 17 transitions that use openGL work not as advertised but as simple transitions. In order to simplify the operation and minimize confusion, I would like to be able to remove the transitions that do not work as intended from the selection menu much like the TOOLS>CUSTOMIZE works to allow different commands to be selected for the menus. I thought there might be a deep expert mode that would allow this.
But thanks for your suggestions.