I posted a month ago that my USB drives will not be recognized after computer is running for a while. In order to open flash drives, i need to restart my computer. Someone had mentioned that they might be powering down? I am not sure how to fix this in my settings. I have windows 7 on an HP. This is driving me crazy when i want to quickly open a file. Can anyone give me instructions how to fix this? Any help is appreciated. Thanks!