Periodically, and randomly, my USB Hub disconnects. I get error messages saying that one or another of my USB devices has been improperly disconnected, but none have been really disconnected. You can be working on the computer and hear the USB ZIP drive go offline and generate an error message. At the same time all the lghts on the USB hub go out and after a very short time they come back on. The supposedly disconnected device also goes back online. I have found no help on the Microsopt web site and Linksys (who makes the hub) doesn;t return calls. Any help would be appreciated.