DELL XPS M1730 Kinect connection problem.

I’m trying to install a Kinect - Touch project on a

DELL XPS M1730
Intel core 2 duo T9300 2,5GHz
2 x NVIDIA GeForce 8700M GT (Two graphics cards! with 377.88 driver, released just a few days ago)

with Win 7 Ultimate 64 bit

Everything works perfectly an PC is really fast (although it has several years…)
Touch works OK but when I connect Kinect it remains (perfectly running) always “connecting to device…” but Kinect never appears…

Does anybody know why…?
Can someone help me ?

Thanks.!

Does the device show up in the device manager? If you download the Kinect Toolkit which has sample applications in their ‘Sample Browser’, do any of those work?

It works!
I think it was a problem on SDK because it didn’t start…
so I re-install SDK and now it work really fast!

This PC is absolutely fantastic…!
and as it’s a little old, I pay it only 580€ (= +or- 750 U$S)