Workspace in use or cannot be created - Eclipse

Eclipse is saying that the "Workspace in use or cannot be created"  in Ubuntu. I say ok, probably a lock file was left behind and so I do:

rm ~/workspace/.metadata/.lock

No error (so the file was left behind), yet the problem is not solved. I tried clearing out the workspace path. Same problem.

Googleing, I found this post, so I ran:

sudo gedit /usr/share/eclipse/configuration/.settings/org.eclipse.ui.ide.prefs

removed the RECENT_WORKSPACES line. It works now.

Reference:
http://abautu.blogspot.in/2009/05/eclipse-says-workspace-in-use-or-cannot.html

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Touch pad is not working on Ubuntu 11.04

Following is blog post with respect to the problem which I faced on my dell vostro laptop with Ubuntu 11.04. My mouse pad(Touch pad) was not working after login screen.

After some googling I found forum articles which describing same problem. Those peoples have different version of Ubuntu with different manufactures of laptop. But I didn't found an exact cause of this issue.

Anyways following is the solution,
Execute following command on terminal

gconftool-2 --set --type boolean /desktop/gnome/peripherals/touchpad/touchpad_enabled true

Reference:
http://blog.railsupgrade.com/2011/05/touch-pad-is-not-working-on-ubuntu-1104.html

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