Editing translated text

[mandb]

Hi, I have installed gtranslate PRO and am very happy with it. However, if I try to edit a translated page using ? language_edit=1 and click on the edit icon, I get a blank edit window. I have set a username and password in the config file but am not asked for them. I also get an error in ie8 which is :
"Message: 'document.getElementsByName(...).0.innerHTML' is null or not an object
Line: 256
Char: 206
Code: 0
URI: http://www.mandbvets.com/bg/the-clinic/? language_edit=1"
Please can you help?

[Edvard]

Try to edit with FireFox.