USB 2.0 trouble

I have two 2.0 USB ports on my PC, however i believe they are not recognised as such, i have no USB 2.0 in the device manager, and my iphone i try to connect up to it is not recognised (i believe because of this). Have tried updating my motherboard drivers but it just blue screened crashed me on bootup till i system restored :/ please help :/ Asus p5n-t deluxe Nvidia GeForce GTX 260

Is showing there tray icon of USB on taskbar??

Are your service packs up to date ? I have seen a lot of USB issues due to SP's, but what driver did you try and use ? and what OS are you running ?

i updated everything (including windows updates, motherboard drivers etc) but it turned out to be that when i had plugged the thing into the USB 2.0 it had malfunctioned and not properly installed :\ managed to update the software for the thing manually through the device manager to resolve it, ta guys