Errors whenever I use Synaptic

[Dave M G]

Ubuntu Users,

Whenever I use Synaptic to install or uninstall anything, I get these 
errors:

E: python-bittorrent: subprocess post-installation script returned error 
exit status 1
E: bittorrent: dependency problems - leaving unconfigured
E: gnome-btdownload: dependency problems - leaving unconfigured
E: ubuntu-desktop: dependency problems - leaving unconfigured


I've tried to uninstall python-bittorrent, bittorrent, and 
gnome-btdownload, but it won't let me.

How can I resolve these dependancy problems?

Thank you for any advice.

-- 
Dave M G
Ubuntu 7.04 Feisty Fawn
Kernel 2.6.20-15-generic
Pentium D Dual Core Processor