[SOLVED] Mageia 4 beta 2 doesn't boot on Dell Inspiron 17RSE

I have a Dell Inspiron 17R SE 7720: Intel Core i7, nVIDIA GeForce GT 650M with 3D capabilities and Samsung SSD of 256 GB.
I tried Mageia-4-beta2-LiveDVD-KDE4-x86_64-DVD copied to USB stick with "dd".
But it does not boot from USB stick, pressing escape reveals:
Nothing happens anymore...
I tried Mageia-4-beta2-LiveDVD-KDE4-x86_64-DVD copied to USB stick with "dd".
But it does not boot from USB stick, pressing escape reveals:
- Code: Select all
Checking for new hardware
Starting netprofile: The default is the current profile.
Checking for new hardware
Starting netprofile: The default is the current profile.
Checking for new hardware
Nothing happens anymore...