Description of problem:

i have installed thunderbird-lightning but it doesn't work in thunderbird 8

Version-Release number of selected component (if applicable):

[hhlp@fedora ~]$ rpm -qa thunderbird-lightning
thunderbird-lightning-1.0-1.fc16.x86_64
[hhlp@fedora ~]$ 

fedora 16 verne 64 bits....

How reproducible:


Steps to Reproduce:
1. backup .Thunderbird directory
2. fresh install 
3. restore .Thunderbird directory
4. Thunderbird version 7 all o.k.
5. update truth packet-kit to Thunderbird 8
6. doesn't work.
 
I also test desintall and install again doesn't work...
 
Actual results:

doesn't work

Expected results:

enable lightning extension

Additional info:

calendar and task are enable but there are in grey and i can't select