Caching plugins and services (such as Varnish) tend to overwrite your desktop theme with posts and pages stored using your mobile theme (and vice-versa). Until caching software can recognize the theme being used, we offer support to assist you in disabling them from activating when mobile devices are detected. This will allow you to see your mobile theme on mobile devices and your desktop theme on desktop browsers as expected.
Our customer support documentation covers most of the popular caching plugins. For the free version of WPtouch, enter the user agents found under Advanced Options > Custom User-Agents to the "rejected user agents" areas in your caching software's settings. Remember to clear your plugin, service, browser, and device caches before retesting.
As caching has little to do with WPtouch or WPtouch Pro, beyond providing guidelines for setup, we are unable to provide additional support for third-party products and services. If one caching plugin or service isn't working well with your WordPress configuration, we recommend contacting the developer and/or trying another.
Remember that your WPtouch Pro license gives you support for your installation. Log in to your account at http://bravenewcode.com/support/ to get started.