I have a graph which I would like to add Y error bars to. When I click to add the error bars, it only allows me to add horizontal bars. This is very strange because the other graph I have, it allowed me to insert vertical bars. Basically when I click on exactly the same menu to insert error bars, on one graph it takes me directly to vertical error bars and on the other graph it only allows me horizontal bars. I have for the last twenty mins been trying to get vertical bars on the menu that gives me horizontal bars. I don't know what else to try. I googled my problem but it just says click on 'More error bars options', but this is what I do by default. It is if Excel is 'deciding' what error bars to give me. Can anyone help? EDIT: This is silly, now when I click on another graph I have created, I have vertical bars as my default... Vertical bars as default on two graphs, horizontal on the other - this makes no sense. Many thanks.