Thank you rlunka! That did the trick. And thank you for your quick reply Paul. I didn't tell you that I was trying to get fancy by using a hidden button object and a graphic. To get the graphic positioned on top of the button, I placed them within a positioned subform.
So my table really looks like this:
sTravelers (flowed subform)
untitled subform (positioned subform)
The click event on the removeButton object looks like this:
sTravelers is a flowed subform, so when I hide the removeButton untitled subform (which takes up the entire row width), I don't get any blank space. Sorry if this is too much info. Now I just need to test the heck out of it.