rbarhan on "W3 Total Cache displays weird characters on Gamezone theme"

Hello.
Recently I installed W3 Total Cache plugin, on my Wordpress site with Gamezone theme, to speed up my site and i identified a problem that does not know how to solve.
Once installed the plugin , all good , the speed of the site grew as Google Page Speed Tool.
The problem is that once installed this plugin, my site works only in Chrome normal . In all other browsers , including mobile phone versions are displayed some strange character sets when you visit the site.
I read about this issue on wordpress forum (http://wordpress.stackexchange.com/questions/59309/page-output-in-strange-characters) because it was opened a topic on this subject , I followed many tips but the problem was still not solved.
I disabled gzip compression , i introduced or removed from the file . Htaccess different lines of code.
I mention that at this time the plugin is disabled and the. Htaccess I brought it to its original shape.
Please help me with this problem because I really want to install w3 total cache plugin to speed up the site.

http://wordpress.org/plugins/w3-total-cache/