Created attachment 124314 [details] Hanging screen When I was trying to change the font when using Calc the dropdown does not show any numbers. Then when I wanted to save the document all the buttons became frozen. Then when clicked the "About" menu the pop-up screen does not show any text, in fact it shows the background image.
Please try to disable openGL and HW acceleration. Tools - Options -View
I re-tried after making the recommended changes and it seemed OK. Thanks a lot for your kind assistance.