Warning tone on entry

[joemacgruder]

For some reason...on only 1 page on 1 layout of my file I have started getting an error tone (beep) whenever I tab to the next field after entering information in any edit box. Does anyone know what might cause this? I have deleted every field individually to see which field is causing it and it keeps happening no matter what I try (I even remade the entire layout to see if it would help). Has anyone seen this before?

[Vaughan]

Is it a calculation field?

[-Queue-]

Do you have spell-checking enabled?