I went around the loop of resetting FF to defaults and it made no difference. I then re-instated ABP (add blocker plus) and still no lottery loading. Ran out of time yesterday, forgot all about it and now it is working as it should! I have no idea what occurred but it has sorted itself out now. I am using Mint 17, it is not long since I rebuilt the machine and installed a new hard drive, the fan in the old one was whistling at me.
Ta for your help and suggestions.
Rans6................