Hi, Vicki,
There's no common solution on this issue, just direction to search. This message means that some object (possibly the textbox object, that used on current slide) does not exist. For example, you are using "typewriter" effect (or other time-spanned effect or action) in parallel with other action, that eventually destroys the object (DISPLAY - hide, for example). Or you are using some action on this object event, which cannot be executed (again - because of time spans). So I think you need to look around this textbox object actions and events to find the exact reason.
Hi, Vicki,
There's no common solution on this issue, just direction to search. This message means that some object (possibly the textbox object, that used on current slide) does not exist. For example, you are using "typewriter" effect (or other time-spanned effect or action) in parallel with other action, that eventually destroys the object (DISPLAY - hide, for example). Or you are using some action on this object event, which cannot be executed (again - because of time spans). So I think you need to look around this textbox object actions and events to find the exact reason.