I have been using my cell phone to connect to the Internet, i.e. my phone is the modem. It is a Motorola W375. I've been using it for about 3 months now and connects to my PC via USB. I also have the program which I use to get the phone to run as a modem. About one week ago, I connected the phone to the PC using the usual port and the PC treated like  new device. I then proceeded to re-install it, but anytime it gets to the last stage where it installs the software, it just gives me an ERROR "Failed Hardware installation" and "there was a FATAL error". This appears at the end of the "Add Hardware  wizard". I tried re-installing the driver before running the Hardware wizard, but the result is the same. I have also re-installed the Windows folder before TRYING the Hardware wizard again, stiil no change.
What baffles me is that when the phone asks me whether to use it as a storage device or not and I choose storage device, it promptly gives me the name of the device as "Motorola W375 MAss Storage device". I have also tried using the phone on another PC and have installed it as a modem without any problems. I suspect that there sis osme KIND of USB port problem, maybe the PC doesn't WANT to recognize the USB port as a COM port anymore.
Right now I have reached the end of my wits. Any help out there?