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Thanks very much Pinky, I do appreciate all your efforts, you have been very kind.
You are correct, I am using the Home Premium version. Sorry, I should have mentioned this. I'm very limited in my knowledge of computing.
I'm gonna have to have a think about downloading the latest driver as I am using a set of compatible inks and the seller (from eBay) put a note in with them, telling me never to agree to printer updates, as Samsung don't want you to use compatibles, they want you to buy the expensive stuff, and there could be something in the updates which prevents the use of compatibles. Do you have any thoughts on this?
Actually, I had to replace one of the compatible toner cartridges as it was leaking yellow toner into the printer, and leaving a yellow streak down every sheet of paper, but that's another story. So perhaps compatibles are a false economy. The eBay seller did replace the faulty cartidge FOC though.