BUG - defaultvalues being erased

Currently (as of sometime yesterday), defaultvalues are being removed from fields whenever a form loads in live mode.

This does not apply to text fields, but to picklists and radiobuttons. The form loads correctly with the defaultvalues as it is supposed to, but then immediately sends an Ajax request which removes the defaultvalues.

If this is a bug at your end, speedy correction would be appreciated.

Thanks

Nick