[ubuntu] Libre Office 4.0 blank menus since latest update

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http://ubuntuforums.org – Greetings everyone, I have a serious problem since yesterday's (20 May 2013) updates of Libre Office 4.0 on my ubuntu 12.04.2 LTS installation. All the menus have turned completely blank making it impossible to use. I would very much appreciate any-one's help on this and I thank you all in advance. (Hardware)