Update Manager...

[Rician]

when i try to install update with update manager i get --> Software index is broken.. What do i do??

Also, when i try to open Synaptic Package manager i get --> E: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem.
E: _cache->open() failed, please report.

i did that sudo dpkg thing in terminal but still get the same error....

Help please?

Thanks

[hhh]

What happens if in a terminal you run
sudo apt-get -f install?

-edit- if that still fails, try this, ignoring any errors...

sudo dpkg --configure -a
sudo apt-get update
sudo apt-get upgrade