Vaio cannot see the monitors

[albertoro]

Hi everyone I have a Vaio with I7-3632QM, windows 7 64bit (downgraded from windows 8).

I have installed the latest driver for the Display Link Graphic Adapters usb2 and connect the usb cable to a usb hub with 4 monitors.

if I go to Screen resolution I only see my laptop monitors and not the others.

If I go to device and printers i see the 4 display link adapters.

bottom line is that i cant see 4 monitors.

what is more frustrating is that if i connect the usb cable into another Vaio laptop everything work beautifully. So my guess is that there is something wrong with the usb ports in my laptop.

Any suggestion anyone please?????

Happy holidays!!!!!