not familiar with the U-Mix version you have ,, can you check around the fourm for topics on your controller and your version of software
there might be some helpful solutions already posted that might get you where you want to be,
if you can post any info that might help us see what going on,,
i think 3dex is a version of the DVS platform , amd if there is a way to see/post a config report that will definitly give a little bit more info
check the search tool under the topic of 3dex and also U-Mix controller,,,,might help you find info