Thank you I have tried that , I have even uninstalled and re-installed the software , the strange part is that on my Nvidia system when I added a new miner , it asked me to put my bitcoin address in and tick which ones to use Zcash etc , but it does not come up with that option it just finishes and I have to override the profile to put the bitcoin address in , the same thing happens as detailed above it starts , checks , then stops.....