1st of all, great plugin, just what I was looking for, thanks for that.
Now, I also had this issue, in my situation was a conflict to an email icon that´s available from my WP theme, with the plugin working (just as a Widget - not HTML though) this email icon just... disappeared. Plugin off, everything back to normal and icon again. I started a thread:http://wordpress.org/support/topic/plugin-gtranslate-issue-installed-and-e-mail-icon-disappeared-help?replies=3#post-1893895
I disabled JQwery library loading as you mentioned and it works! I have icon again
What are the consequences of having this library unloaded?