When I install the GUI on a 64bit Win7 Home Premium PC, I am initially asked for choice of Language and select English. After the install is complete and I run the GUI, there is no 'English' language choice but instead a choice 'en" which displays no labels or interface at all (the window is open but nothing displays). When I select any other language, it works properly. I have tried every version from 0.7.5 on and have the same result. I have even manually edited the Registry to remove all MediaInfo items after uninstalling the program. After a restart and re-install of MediaInfo , the same thing happens.