I can't reseat the card as I need to go physically there but I believe this to be my only option.
You should know better.
Ask in the PhoenixMiner thread.
Did you try if any other miner can see the card as it might be faulty?
It is not a miner problem.It is a Nvidia problem as even Windows do not recognize the card,I will try to reseat the card today and hopefully it will be back.It used to work for many months up until yesterday so it is not faulty (at least I hope it is not burned as Phoenix miner see it as a device although Windows does not).
Edit: Fixed with a reseat,locking the thread.