yes, I have installed them numerous times. LOL I made sure I had a cable that was working (I can plug a different phone in and it will recognize the usb connection) but when I plug the Optimus in, it only charges, it doesn't even make the noise that a computer makes when you plug something in.
I was thinking that it might have been a Windows problem, but I think that it must be that the usb port on the phone is dead. That is the only reason I can think of that the cord and computer would recognize another phone and not this one. (If it was a driver issue, I think the computer would say "need drivers" or "looking for drivers" or something like that, right?)
Ah, looking at your signature, I can see you are also using Windows 7. I am assuming that means that it would not be a Windows problem. I trued upgrading the BIOS on the computer, but HP doesn't have BIOS updates for Windows 7 for my laptop (Presario V6700)