Many thanks for all the replies and some very useful information and suggestions.
Beth - No she hasn't come into milk at all since I dried her off for her 2009-10 kidding. I thought because she came into rip-roaring season this year and was happily covered and then didn't 'return', I kept my fingers crossed that all was back to normal. Last year she just kept returning season and so I KNEW she wasn't in-kid but this time, I was pretty hopeful. (PS - Spring is in kid too

)
The scar tissue damage is certainly a possibility as there had to be a lot of intervention (09-10) to get the kids out (2 HUGE kids coming at the same time and both dead) and she was very poorly for about 3-4 days before she finally turned the corner and started to improve. Once she'd recovered she's been in peek of health, very happy, glossy coat, eats well (actually she's a gluten for food

) and to all intents and purposes, absolutely fine.
The cystic ovaries are also very big possibility and I'm glad you mentioned it Wytsend as had crossed my mind, but wasn't sure if I was barking up the wrong tree - so will discuss this with my vet.
Plan now is to firstly chat to my vet tuesday when I take a couple of male kids down for disbudding and castration and then get her looked at. If the general consensus had been "forget it, she'll never breed now", then I would have had to deal with the possibility of losing her, but as there has been such a lot of positive feedback and "possibles", then I'm going to take it further and give her every chance.
thanks again all and I'll keep you updated.
