When I burn data discs with K3B, i have multisession on auto. But when I try and reuse the disc it asks for a blank or appendable medium. I wanted to force multisession to on but when i click the drop down button, it doesnt respond.

None of the menus open either when clicked. I had recently upgraded from 10.04 to 10.10. I wonder if this could be the cause. I would like to try other things though before a reinstall of the os.