I've done a crash course in cgmier and got my U1 miners working as expected, but do the U1 miners have to be plugged in manually every time cgminer restarts?

On Windows 7, starting cgminer with all the U1's connected causes a "Program not responding" state.
Unplugging them all, re starting cgminer, and pluging them all in one by one seems to be the only solution.
Is there a work around for this problem?