thanks Elcato,
Problem is I don't have access to the local machine due to an unexpected trip to A&E last night which has resulted in being housebound today. Usual device is at work so was hoping to finish off form 11 at home on laptop today. May have to wait til tomorrow to access work device, where digital cert is loaded, to complete. Really wanted to avoid last minute rush tomorrow and wondered if I could reload cert at home via ros.