[Plugin: Quick Cache ( Speed Without Compromise )] quick cache and wp mobile detector

Using WP Mobile Detector Version 3.4.2, the cache pages are being shown, instead of the mobile version of the pages. Do I need at add a tag to not serve cache pages to a mobile browser? Or is there something else I need to do? Change mobile plugin?

Thanks ahead of time,

William

PS: Here is my site (store) page

http://ww.wp.xz.cn/extend/plugins/quick-cache/