OK. So I've perused a bunch of the "USB Ports not working" issues here on the forums, and also on most of the internet. I believe that I have a problem that is unique, and is easily the most frustrating issue that I've ever encountered. Before I start, here is my system config: ++++++++++++++++++++++++++++++++++++++++++++++++ OS: Windows XP Professional (5.1, Build 2600) Service Pack 2 (2600.xpsp_sp2_gdr.050301-1519) BIOS: BIOS Date: 03/15/04 22:33:44 Ver: 08.00.09 Mobo: ASUS p4p800se Processor: Intel(R) Pentium(R) 4 CPU 2.80GHz (2 CPUs) Memory: 1022MB RAM Video Card: NVIDIA GeForce4 Ti 4600 Sound Card: EMU - EmulatorX ----------- USB Devices ----------- + USB Root Hub | Vendor/Product ID: 0x8086, 0x24D4 | Matching Device ID: usb\root_hub | Service: usbhub | Driver: usbhub.sys, 8/3/2004 23:08:44, 57600 bytes | Driver: usbd.sys, 8/4/2004 05:00:00, 4736 bytes +++++++++++++++++++++++++++++++++++++++++++++++++++ If you need more info, please let me know. This computer has been solid as a rock ever since I put it together a few years back. - Recently I reformatted the C: Drive. - I have a USB mouse. - I then proceeded to do windows updates. - While windows was updating, I transferred some music to my PSP. - After one of the windows reboots, I noticed that my mouse had stopped working. - I figured that it was the mouse that had failed since it's about 5 years old at this point, and I grabbed another nearby mouse which was also USB. - this mouse did not work either. - I then tried the first mouse in another computer, and it worked fine. - After some initial Plug n Play testing, I found that windows no longer registered any devices that were plugged into the USB ports, yet any device that had a power light; lit up. - I then uninstalled the USB Hubs etc. from the device manager and restarted the computer. - When Windows rebooted, it reinstalled all of the USB Hubs. - When I attached any USB device, the power light came on, but WinXP did not "see" it. - I then reformatted and reinstalled windows. - Windows STILL did not find any USB devices that I plugged into the ports. - I then went into the BIOS to make sure that USB had not been turned off somehow - it had not. Devices that power up from USB, but are not found by windows: - PSP - various mice - Wacom tablet - External DVD Burner - Thrustmaster Joystick My MoBo has 8 USB ports, and all of them power on USB devices, but do not register them in windows. 2 of the ports are in the front, 4 are attached directly to the MoBo, and 2 are on a joystick/USB daughter card that came with the MoBo. Does ANYONE have any ideas? I'd like to use my accessories again Thanks for any help that you can give.