Faced with such a problem. On the blog was equipped with two plug-in: wp-pda (to create a mobile version of the blog), and hyper-cache (speeds up your blog by caching). Plug-ins were activated and worked together.
And so. I stop by on your blog instead of some pages and see the mobile version of the page. This did not happen often and still not nice when something does not work properly.
It was found that hyper-cache caches all blog pages: whether they are regular or mobile. In the plug-in is a function of "do not cache pages for mobile devices," but to work with wp-pda she refuses.
In general, it was necessary to decide what is more important: the reduction of resource blog or presence of a "lite" version for mobiles. I chose the former, because visitors to these most smartphones and other things were not a lot of good (about 10 hosts per day).
Solving the problem
Searching the online way to get these two plugins to work together I came to the conclusion that the right thing.
In general, if you do not want to limit mobile surfers accessing the site, you can simply replace one of the plugins for the same.
Replace wp-pda to:
Replace the hyper-cache to:
On the methods of installing plug-ins read on their homepages.