CMS Can't add article properly due to apostrophe sign in the text
 

Hi,
Whenever I am adding an article which contains the apostrophe sign(s) in the text can't be get added properly.

For example when I try yo add the following text:

Quote:
the sequel to Ubisoft Montreal’s highly successful third-person action/adventure video game Assassin’s Creed.

after saving the article only the follwing got saved:

Quote:
the sequel to Ubisoft Montreal

I am running php 5.3 and vbulletin 4.0.2