Eclipse plugins uninstall every time eclipse closes

[Shiva Narrthine]

Using eclipse from software sources. Eclipse plugins like the Android ADT plugins stop working after every time I close the program and open it again. Have to uninstall and reinstall plugins to work.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: eclipse (not installed)
ProcVersionSignature: Ubuntu 3.5.0-17.26-generic 3.5.5
Uname: Linux 3.5.0-17-generic i686
ApportVersion: 2.6.1-0ubuntu1
Architecture: i386
Date: Mon Oct 8 11:57:28 2012
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Beta i386 (20120926)
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: eclipse
UpgradeStatus: No upgrade log present (probably fresh install)