Thanks, Clint and Hans.
This was the best server I had selected in Synaptic, and it's
apparently outdated now:
$ sudo apt-cache policy php5-mysql
php5-mysql:
Installed: (none)
Candidate: 5.3.6-11ubuntu1
Version table:
5.3.6-11ubuntu1 0
500 http://mirrors.ccs.neu.edu/ubuntu/
Public bug reported:
System: Ubuntu 11.10 amd64
$ sudo apt-get -f install php5-mysql
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are