Hi Folks. Bought a new motherboard,cpu and a copy of Windows 7 Home 64 bit in November. For the last month or so I haven't been able to use my printer, my external drive, jumpdrive or ipod. What happens is I'll boot my computer up and everything is fine for a few minutes and then my computer automatically dismounts all usb devices. I've done virus checks with mulitple programs, ran spyware, etc. I rarely use this computer as I'm on my laptop, it's used mostly for streaming media to my xbox 360. The motherboard bios is uptodate, its a msi g31m3-fv2. All windows updates have also been applied. When I look at device manager all usb ports have yellow attention sign except for a hub. These are the error messages: Universal Serial bus controllers =Intel(R) n10/ich7 family usb universal host controller 27c8 " " 27c9 " "27ca " "27cb Intel"R" n10/ich7 Family usb2 enhanced host controller-27cc All the above have the yellow sign next to them For the life of me I can't figure this out and it's driving me nuts. I can't tell if it's hardware or software related, only had the board for a couple of months, it shouldn't have failed this quickly. Any ideas or suggestions on this would be most appreciated. Thank you, Voltaire.