They should save automatically, but if you are logging out after each visit (which you don't have to do...) then that is probably clearing your theme choice.How do you save them? And when I log out it says cookies cleared.
Yeah, I'd say it's deleting your chosen theme when you log out. Try rebooting your browser without logging out? No-one ever logs out anyway, as unless you're using a shared computer, it shouldn't matter.When I log out, the theme stays. When I leave, and come back to this site it's the Default winter theme, and when I log back in, it's still the default theme.
Yeah, I'd say it's deleting your chosen theme when you log out. Try rebooting your browser without logging out? No-one ever logs out anyway, as unless you're using a shared computer, it shouldn't matter.
Go to user control panel, and the go to edit options. Scroll all the way down and you will see a box that says "Forum style," and in there, there should be a drop down menu; select the them that you want, and click save on the bottom of the page. Now every time that you log in, it will automatically change theme for you.