- Open up any new OpenOffice document (text is probably easiest).
- Under the "Tools" menu, select "Options."
- Under the heading "OpenOffice.org," select "Fonts"
- Check the "Apply Replacement Table" checkbox
- Underneath the checkbox line, in the "Font" combobox, type "Andale Sans UI" (it wasn't in my popup menu, I had to type it in by hand)
- In the "Replace With" combobox, type or select "Interface User"
- Click the green check mark to add that to your list of substitutions, and make sure the "Always" and "Screen" checkboxes are checked in the listbox, and then click OK.
[robg adds: I haven't tested this one...]

