Open shortcut shows "no items found"

The gedit open button has a pulldown menu that used to show recently opened documents. Lately, it shows "no items found" despite the fact that I've been using it plenty. Where did my recent documents go?

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: gedit 3.2.3-0ubuntu0.1
ProcVersionSignature: Ubuntu 3.0.0-29.46-generic-pae 3.0.53
Uname: Linux 3.0.0-29-generic-pae i686
ApportVersion: 1.23-0ubuntu4.1
Architecture: i386
CheckboxSubmission: c3a5f7abe4edce20cc786319064b31f1
CheckboxSystem: bb422ca46d02494cdbc459927a98bc2f
Date: Wed Jan 2 08:44:19 2013
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/gedit
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: gedit
UpgradeStatus: Upgraded to oneiric on 2011-10-16 (443 days ago)