Remote Fob Programming Mode not engaging

[FredWidgy]

Hi,

Just got a "new" jazz, only had one remote fob, acquired 2 more, and went to programme them.   It entered programming mode the first time - locks toggled - but then I guess I screwed up and exited programming mode before I got any of the fobs programmed in, as now none of the fobs work.

Fine I figured, I'll just re-enter programming mode, but now it never enters programming mode, the locks never toggle.   Is there a timeout before I can programme again, or have I done something more drasticly wrong?