so I have changed the theme on my windows vista computer. I changed the theme away from one of the ones I had downloaded, but the back and forward buttons in the file explorer won't change back. I've tried changing the theme with my theme app (it doesnt require the system hack) and with the built in one, changing to a new one, to the windows classic theme, to default. but no matter what I try those buttons can't change. is there any way to change them manually?