I just noticed today that my computer no longer sees the sd card in my my touch when I plug it in usb. I have narrowed it down to the 1.6 update. It still charges and when I plug it in the phone asks me if i want to mount, I select yes and before it would pop a window on my pc asking what I wanted to do. Now nothing. Not even in "My Computer". PLEASE HELP. Any input would help Thanks