I seem to be getting the same trouble this user experienced, LibreOffice completely blank
Only I cannot find the entry on the file suggested for open GL. I only installed yesterday, played around a bit in writer and came out. Today I go in and I just get a blank screen as in the image attached.
I am using Windows 7 and Libre office 4.4.1.2.
In case it helps I installed the programme on my D drive because my main system drive is a SSD with windows only, because of space.