ive been using the sades a60/omg headphones for almost 3 months now w/ no problems. today when i when to use them i couldn't get them to work. the white led's on the sides are lighting up like they should as is the white led on the in line control. ive switched ports and used other usb devices in the ports making sure its not my motherboartds ports. these are supposed to be plug and play headphones so no drivers. im stumped. whats happening!?