Thank you for the advice, Floux. Have deleted CrossOver now (it was as helpful as a wet paper bag anyway) and the driver remains as nvidia 331.
I may have to just delete Wine and Play on Linux and try to start again but for now, my eyeballs are hanging out and I need to take a break from this.
The torrent download from Vanilla Gaming isn't working - as mentioned earlier, wine is having little heart attacks of 'fatal errors' and given that I'm really not gifted with a techie brain, it's more than likely something I'm doing wrong.
Will no doubt stumble upon a solution eventually, but thank you very much for all your patient help