I've installed Windows XP Pro including SP3 & all available updates & all hardware is installed according to the Device Manager. However whenever I plug in my iPhone 4 to any one of the 3 USB ports, a message comes up saying words to the effect that it would work better in a Hi Speed port & to look at what's available. I do so & see that the USB Root Hub (6 ports) & below that 6 lines all saying "Unused Port".
There are in fact only 3 actual visible ports to be seen (manufacturers specs) so how can I bring them up to USB 2 speed? I've looked on the ACER web site for this model & reinstalled every available driver but all to no avail. I've even un-installed all the USB ports & hub & after a restart, they all come back as before. Any advice would be most welcome.