Display Link display dies after a few seconds.
 

I'm using the lastest RC drivers with a 4 monitor setup.
Two of the monitors are on a Geforce 8800GTX, the third one on the motherboard integrated i915 and the fourth one on USB (Syncmaster U70).

Upon plugging in the U70 it starts as expected, is recognized in the Windows appearence properties but dissapears after a few seconds.
Wait a little while and a "USB device failure" notification shows up.

This scenario can be reproduced at will by unplugging/plugging the U70.
I'm running Windows 7 Ultimate, up to date.

Before questioning software related issues - are your computer Power Supply efficient enough (aren't there too many USB devices plugged in already)? Samsung u70 is quite greedy when it comes to power needed to operate, and common motherboard provide not more than 500mA for ALL USB devices together. Try to unplug all other USB devices and plug display in rear USB ports insted of front ones and then try again.

rite thanx for info