Cross DJ LE not worked with U-Mix 44

Sorry for my bad english... Cross DJ LE not worked with my U-mix44. I try many versions & have this problem. Other software worked with my U-mix44 normally. Program printed "Please plug in and power on the U-mix44 soundcard. Waiting...." and wait.
This problem only with windows 7 operation system. With windows XP software & hardware worked normally.
This problem only with windows 7 operation system. With windows XP software & hardware worked normally.