Ctrl Space Not Working in Eclipse Helios on Win 7

I have shifted by Dev Env recently to Eclipse Helios on Windows 7. After that the Ctrl + Space Content Assist feature is not working. I found out that that key option is utilized by Language Settings. I have tried disabling it. But it still doesn't work in Eclipse.

Any help is much appreciated.

Why is my Ctrl space not working in Eclipse?

Go to Windows --> Preferences --> Java --> Editor --> Content Assist --> Advanced --> select all Java & Java Type Proposals. Click on Apply and close it. Restart the eclipse.

Why Eclipse shortcuts are not working?

Go to Window -> Preferences -> General -> Keys. Then, click Restore Defaults button at the bottom, and restart Eclipse.

Configure Eclipse’s content assist, go “Preferences>Java>Editor>Content Assist>Advanced“. Make sure “Other Java Proposals” is ticked.

http://www.mkyong.com/java/content-assist-ctrl-space-is-not-working-eclipse/