Flash drive problem: My computer will not read my flash drive when I plug it in the front of the computer.?

As you know, there are many USB ports on the computer, both front and back. Whenever I plug the flash drive in the front, my computer can never read it and it shows that no flash drives are present. On the otherhand, when I use an USB port on the back of the computer, it reads it just fine. How can I fix the... show more As you know, there are many USB ports on the computer, both front and back. Whenever I plug the flash drive in the front, my computer can never read it and it shows that no flash drives are present. On the otherhand, when I use an USB port on the back of the computer, it reads it just fine. How can I fix the front port so it can read it? Thanks in advance.
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