Switch Account regularly fails for me. One of the accounts I'm switching to/from is in group adm, the other not. Both users have the nopasswdlogin. I'm using the icon in the upper right hand corner ...
I have a fresh install of 11.04 64bit, with 2 administrator accounts and 4 normal accounts. The 4 normal accounts (the kids' accounts) don't have passwords, they can login simply by clicking on ...