Must be my laptop then Cathy!

Thanks Mark. I had been trying to use the tool bar above the post rather than the additional options thing underneath (which I hadn't noticed before).I'd been trying to use the thing that looks like a postcard in the toolbar ...it says it inserts an image but it asks for a URL. I've now just seen that the paperclip thingy (attach files) would have worked to upload an image from my computer too. Getting there slowly. . It's great having so many new gadgets to play around with though, much superior to the bog standard php forums!