Weird problems:Cross and U-Mix Control Pro 2 (Help request)

Hi there from germany,
Just bought the U-Mix Control Pro 2 and Cross DJ and I was (and still am) experiencing some very weird problems.
I tried to post in the help section first, but it wasn't possible for me. So here I am, angry to the bone, with a problem, hopeing someone can help.
(prologue:)
First I istalled the driver and software that came with the purchased CD.
Everything worked fine, but every mix I recorded seemed corrupted (Error code 88780064) . My bad, since I didn't know, I had to switch between the U-Mix Soundcard and my onboard one.
Before I figured that out, I downloaded driver and software updates.
Uninstalled everything. Ran 2 different Reg Cleaners (cCleaner and Tweak Now) just to make sure I removed every little bit of the former installations.
Installed the software updates and the new driver, plugged U-Mix Control Pro 2 to my USB and thats where the problem starts:
(Problem:)
The Master Volume is now controlled by the "Mix" button that's for the Headphone Mix. It's no longer possible to preview sound via headphones, because the signal comes out of my speakers when I press the "Headphone button" (Source A or B on top of the hardware right next to the gain control).
Any Ideas what might have gone wrong or how to solve it?
Thanks
Just bought the U-Mix Control Pro 2 and Cross DJ and I was (and still am) experiencing some very weird problems.
I tried to post in the help section first, but it wasn't possible for me. So here I am, angry to the bone, with a problem, hopeing someone can help.
(prologue:)
First I istalled the driver and software that came with the purchased CD.
Everything worked fine, but every mix I recorded seemed corrupted (Error code 88780064) . My bad, since I didn't know, I had to switch between the U-Mix Soundcard and my onboard one.
Before I figured that out, I downloaded driver and software updates.
Uninstalled everything. Ran 2 different Reg Cleaners (cCleaner and Tweak Now) just to make sure I removed every little bit of the former installations.
Installed the software updates and the new driver, plugged U-Mix Control Pro 2 to my USB and thats where the problem starts:
(Problem:)
The Master Volume is now controlled by the "Mix" button that's for the Headphone Mix. It's no longer possible to preview sound via headphones, because the signal comes out of my speakers when I press the "Headphone button" (Source A or B on top of the hardware right next to the gain control).
Any Ideas what might have gone wrong or how to solve it?
Thanks