Comment 14 for bug 609171

I have the same problem on AMD Lucid Lynx. As described across the posts above, I did:

sudo apt-get remove pgadmin3
sudo apt-get build-dep pgadmin3
sudo apt-get --compile source pgadmin3
ls pgadmin*deb
sudo dpkg -i pgadmin3_1.10.2_1_i386.deb

That brought it back, including old server settings.