Cross 1.5.2 - No more signal

Good evening,
I'm having a big problem on Cross 1.5.2.
My SoundCard is the U46MK2 and I've tried both ESI and Mixvibes drivers (3.0).
Yesterday, everything was working fine. I've unplugged my soundcard, and the laptop has frozen. Today, I start it and I can't get any signal at all!
Here are some screens :



My laptop is a Asus K52J with an intel Core i5 and 4GB of Memory.
I installed a fresh windows 7 32bit a month ago.
This is not the first time it happened to me. Last time (actually last week), I plugged/unplugged, installed/uninstalled mixvibes and driver, and finally it worked again when I changed the USB Cable.
But it seems the problem was not from here, cause it happens again.
I've my first concert in about a month, and I'm really stressed because of this problem.
Thanks in advance !!
I'm having a big problem on Cross 1.5.2.
My SoundCard is the U46MK2 and I've tried both ESI and Mixvibes drivers (3.0).
Yesterday, everything was working fine. I've unplugged my soundcard, and the laptop has frozen. Today, I start it and I can't get any signal at all!
Here are some screens :



My laptop is a Asus K52J with an intel Core i5 and 4GB of Memory.
I installed a fresh windows 7 32bit a month ago.
This is not the first time it happened to me. Last time (actually last week), I plugged/unplugged, installed/uninstalled mixvibes and driver, and finally it worked again when I changed the USB Cable.
But it seems the problem was not from here, cause it happens again.
I've my first concert in about a month, and I'm really stressed because of this problem.
Thanks in advance !!