How do you remove Background images from the Themes menu???

[BadBoy House]

I had a couple of images I used which I applied via the Background sub-menu in the Themes menu.

I've since formatted my memory stick but am still able to select the old images.

I'd like to delete the said images - any idea how I do this?

btw I'm running the latest DAX firmware.

[mike_jmg]

restore default settings
if that doesn't work use format flash1 on the recovery menu