Just to update you. She had 1hr 30mins nap, woke at 1pm, was really happy, so I left in her cot, to see if she would go back to sleep, didn't, I eventually got her up at 1.25pm. Put her to bed at 6.30pm asleep by 6.50pm.
Meg, we have just gotten over teething, 8 through at once, 4 molars and 4 canines, it was rough but not as rough as I thought it would be, she is now walking, so I am very lucky, to get the teething and the walking over and done with before we went to 1 nap.