have you installed anything recently could try a restore if this just started recently, could even be a virus or spyware are you using any utilites like norton systm works or spy doctor to make sure your system is clean. if you reinstalled and it worked then something is interfereing with the driver. maybe an address problem if you added a device recently. looke in your device manager and see if you have any yellow flags click preference on the device adn reinstall them.but this won't fix the cause of the problem only tempory fix the problem.

If you talk to the Animals, they will talk with you. And you will know each other. If you do not talk to them, you will not know them. And what you do not know you will fear, What one fears One destroys." Chief Dan George-Tsleil-Waututh Nation Next time your scared by a bat remember 8 million have died from White Nose Syndrome 1 bat=5 lbs bugs/year=1-2 million mosquitoes/year 1 small bat house = 250-700 bats you do the math. West Nile Virus infected 5287 people killed 243 last year is your home protected? http://fewerr.org/Pictures/WNV_Bat_Mosquito_yellow%202.pdf

http://www.fewerr.org/PDF/bookfly1.pdf