The third is a new drive that is not yet useable on two of my three systems (verified to work on one system). I have three flash drives, two of these work fine (one USB 1.1 the other USB 2.0). My symptoms appear a little different than those I have read in this thread. I also am having trouble with a USB 2.0 flash drive on an XP Pro SP2 system. Thanks once again for your interest in helping me out. WHY does it show two ports as Unknown - shouldnt it just show one since only one flash drive has been inserted and the other USB port is empty. These drives were working perfectly before.Ģ) As I mentioned in the previous post, when I plug only one flash drive, it does display on the Power Tab for the Hub as: I cant believe that there is really a power surge on the Hub. So, is it likely that the 'Power Surge on Hub' message that comes is basically doing something. On my XP SP2 machine that is giving problems - they dont even come on green. On machines with which they work this light becomes green. Some additional points that might be of interest:ġ) Each of the Flash drives have a little LED that comes on - a green light.

I uninstalled the USB Root Hub for that - restarted - XP found the Hub and installed stuff on its own - but still nothing gets recognized. worked with just one port (in fact my webcam works off any port - so the two USB ports that I have are ok - I guess). The other one (SimpleTech) does not have any such button. So I made sure that the button is not on 'locked'. One of my flash drives (Memorex) has the read only stuff.

Paul - Thanks for your help so far on this.

Xp sp 2