I just installed pro version and got this error on all pages after enabling the plugin:
Site error: the file /sitepath/plugins/system/gtranslate/gtranslate.php requires the ionCube PHP Loader ioncube_loader_lin_5.3.so to be installed by the website operator. If you are the website operator please use the ionCube Loader Wizard to assist with installation.
My host servage.net has IonCube installed can you help. If needed I can send my FTP details.
Best,
Sara

http://www.guldkursen.dk