In Thunderbird 15.0 on Kubuntu 12.04 64Bit disappeared the folder list in the copy to menu
- select write (new message) appears a new window
- select options
- selcet copy to - appears a little white point instead of the folder list
Same problem on two different notebooks; one upgraded from 11.04 and the other with a clean 12.04 installation.
Seems related to the 15.0 version