this is a problem, I use both yellow USB hookups on my MB. one for the 2 front USBs (only 1 works other one is jacked up, looks like bent pins inside) and the other is for a diagnostic tool i have with 2 usb ports on it as well. its located in the back of my PC. I can give you more information on this but if i do this, then i will lose 4 out of 8 (7 working) ports on my PC...
I will look at the pins to see if that is "causeing" this problem. but i think that this is not
the case.