I have a usb samson g-track mic When i plugged it in on the computer, the drivers downloaded automatically and it worked but since that first time, now when i try and plug it in it the mic doesnt pick up any sound. Ive tried it with other usb ports and they worked first time until after i unplugged it and now it doesnt pick up sound anymore. is this a driver issue and if so, what do i need to do?