Have you tried System Restore to a point prior to this issue?
Have you tried uninstalling the devices (by right clicking on them) and then rebooting to let Windows redetect them? Try rebooting a minimum of 3 times.
System Manufacturer/Model Number Home built (x64), Lenovo x61s Tablet, Samsung Netbook OS Win7 x64 + x86 CPU Intel i7 920, other Intel chips, and the Atom in the netbook Motherboard Asus P6T Deluxe Memory 12 gB; 4 gB Lenovo; 1 gB Samsung netbook Graphics Card ATI 4870 Sound Card Yes, I have one of these Monitor(s) Displays 32" Sharp Aquos TV Screen Resolution 800x600 - I have vision issues
Keyboard Microsoft Natural Mouse Logitech Trackman PSU 1000 watt (can't recall the brand) Case Antec 300 Cooling Big honking cooler that was rated highly at Toms Hardware Hard Drives 4 - 150 gB Velociraptors in RAID 5
Promise controller Internet Speed Cable Other Info GeekSquad UPS
DLink DNS-323 NAS (2 tB)
Netgear wireless router as an access point
Netgear wired router FSV-318
Home network consists of
4 desktop computers (2 Vista, 2 Win7)
1 netbook (Win7)
4 laptop computers (XP, 2-Vista, Win7)
Wii and XBox 360
couldn't make system restore, i've already disabled it
on the other hand, i've tried uninstalling drivers & rebooting many times, still didn't work
I also tried re-downloading drivers and had the same result