I'm using since a few days your latest version. GTranslate is before (means lower order number) than System Cache. Now everytime I turn the plugin on, it switches back to russian. I don't know why because as default language I've set german.
It doesn't matters if I've got the site cache enabled or not (beside it saves the wrong language version of my content when it's on). Detect default language and browser language set to off. I even tried to delete the content of the russian cache folder below /gtranslate.
Is there a fix for this? Can you please help me? Such things are deadly for SEO...
If you need access to my site, please send me an email.
EDIT: Seems to be that I've got the same problem like gtranslate-pro-problems-with-default-language-t2725.html . My .htaccess contains the latest version of the rewrite rules.