Does anyone have any idea whats causing that blank spot that appears to the right of the tabs when I click on them as shown in the bottom picture? It works fine, but that is really starting to annoy me.

It all looks fine like in the top picture, until I click on it. Im not sure what is causing this, and im not sure how to fix it. Ive looked at my other dialogs that use tabs, other peoples dialogs, and all of them look similar but do not have that problem.

Here is the code too:
Code:
dialog test {
  title "Test"
  size -1 -1 316 184
  option dbu
  list 1, 5 6 85 155, size
  box "", 3, 95 4 215 157
  edit "", 4, 100 115 205 40
  button "Exit Settings", 6, 255 165 50 15, cancel
  button "Apply Changes", 5, 200 165 50 15
  box "", 20, 100 24 185 87
  tab "Identifications", 21, 105 30 173 74
  tab "Settings", 22
}